diff --git a/phpcs.xml.dist b/phpcs.xml.dist
index 56e4fcbc35..4cdad01092 100644
--- a/phpcs.xml.dist
+++ b/phpcs.xml.dist
@@ -148,6 +148,11 @@
 		<exclude-pattern>/tests/phpunit/tests/l10n/loadTextdomainJustInTime\.php</exclude-pattern>
 	</rule>
 
+	<!-- Translator comments aren't needed in unit tests. -->
+	<rule ref="WordPress.WP.I18n.MissingTranslatorsComment">
+		<exclude-pattern>/tests/*</exclude-pattern>
+	</rule>
+
 	<rule ref="Generic.Functions.FunctionCallArgumentSpacing">
 		<exclude-pattern>/wp-config\.php</exclude-pattern>
 		<exclude-pattern>/wp-config-sample\.php</exclude-pattern>
diff --git a/src/wp-content/themes/twentyeleven/archive.php b/src/wp-content/themes/twentyeleven/archive.php
index c877947681..ce653729d1 100644
--- a/src/wp-content/themes/twentyeleven/archive.php
+++ b/src/wp-content/themes/twentyeleven/archive.php
@@ -21,15 +21,20 @@ get_header(); ?>
 
 				<header class="page-header">
 					<h1 class="page-title">
-						<?php if ( is_day() ) : ?>
-							<?php printf( __( 'Daily Archives: %s', 'twentyeleven' ), '<span>' . get_the_date() . '</span>' ); ?>
-						<?php elseif ( is_month() ) : ?>
-							<?php printf( __( 'Monthly Archives: %s', 'twentyeleven' ), '<span>' . get_the_date( _x( 'F Y', 'monthly archives date format', 'twentyeleven' ) ) . '</span>' ); ?>
-						<?php elseif ( is_year() ) : ?>
-							<?php printf( __( 'Yearly Archives: %s', 'twentyeleven' ), '<span>' . get_the_date( _x( 'Y', 'yearly archives date format', 'twentyeleven' ) ) . '</span>' ); ?>
-						<?php else : ?>
-							<?php _e( 'Blog Archives', 'twentyeleven' ); ?>
-						<?php endif; ?>
+						<?php
+						if ( is_day() ) {
+							/* translators: %s: date */
+							printf( __( 'Daily Archives: %s', 'twentyeleven' ), '<span>' . get_the_date() . '</span>' );
+						} elseif ( is_month() ) {
+							/* translators: %s: date */
+							printf( __( 'Monthly Archives: %s', 'twentyeleven' ), '<span>' . get_the_date( _x( 'F Y', 'monthly archives date format', 'twentyeleven' ) ) . '</span>' );
+						} elseif ( is_year() ) {
+							/* translators: %s: date */
+							printf( __( 'Yearly Archives: %s', 'twentyeleven' ), '<span>' . get_the_date( _x( 'Y', 'yearly archives date format', 'twentyeleven' ) ) . '</span>' );
+						} else {
+							_e( 'Blog Archives', 'twentyeleven' );
+						}
+						?>
 					</h1>
 				</header>
 
diff --git a/src/wp-content/themes/twentyeleven/author.php b/src/wp-content/themes/twentyeleven/author.php
index c6d68e216d..eeb3bdd37c 100644
--- a/src/wp-content/themes/twentyeleven/author.php
+++ b/src/wp-content/themes/twentyeleven/author.php
@@ -26,7 +26,12 @@ get_header(); ?>
 				?>
 
 				<header class="page-header">
-					<h1 class="page-title author"><?php printf( __( 'Author Archives: %s', 'twentyeleven' ), '<span class="vcard"><a class="url fn n" href="' . esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ) . '" title="' . esc_attr( get_the_author() ) . '" rel="me">' . get_the_author() . '</a></span>' ); ?></h1>
+					<h1 class="page-title author">
+					<?php
+					/* translators: %s: author display name */
+					printf( __( 'Author Archives: %s', 'twentyeleven' ), '<span class="vcard"><a class="url fn n" href="' . esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ) . '" title="' . esc_attr( get_the_author() ) . '" rel="me">' . get_the_author() . '</a></span>' );
+					?>
+					</h1>
 				</header>
 
 				<?php
@@ -58,7 +63,12 @@ get_header(); ?>
 						?>
 					</div><!-- #author-avatar -->
 					<div id="author-description">
-						<h2><?php printf( __( 'About %s', 'twentyeleven' ), get_the_author() ); ?></h2>
+						<h2>
+						<?php
+							/* translators: author display name */
+							printf( __( 'About %s', 'twentyeleven' ), get_the_author() );
+						?>
+						</h2>
 						<?php the_author_meta( 'description' ); ?>
 					</div><!-- #author-description	-->
 				</div><!-- #author-info -->
diff --git a/src/wp-content/themes/twentyeleven/category.php b/src/wp-content/themes/twentyeleven/category.php
index 903ef11676..02a198e88f 100644
--- a/src/wp-content/themes/twentyeleven/category.php
+++ b/src/wp-content/themes/twentyeleven/category.php
@@ -17,6 +17,7 @@ get_header(); ?>
 				<header class="page-header">
 					<h1 class="page-title">
 					<?php
+						/* translators: %s: category title */
 						printf( __( 'Category Archives: %s', 'twentyeleven' ), '<span>' . single_cat_title( '', false ) . '</span>' );
 					?>
 					</h1>
diff --git a/src/wp-content/themes/twentyeleven/content-featured.php b/src/wp-content/themes/twentyeleven/content-featured.php
index 8d8fd4f90d..ca28767beb 100644
--- a/src/wp-content/themes/twentyeleven/content-featured.php
+++ b/src/wp-content/themes/twentyeleven/content-featured.php
@@ -35,8 +35,10 @@ global $feature_class;
 			/* translators: used between list items, there is a space after the comma */
 			$tag_list = get_the_tag_list( '', __( ', ', 'twentyeleven' ) );
 		if ( '' != $tag_list ) {
+			/* translators: 1: category list, 2: tag list, 3: post permalink, 4: post title */
 			$utility_text = __( 'This entry was posted in %1$s and tagged %2$s. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyeleven' );
 		} else {
+			/* translators: 1: category list, 3: post permalink, 4: post title */
 			$utility_text = __( 'This entry was posted in %1$s. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyeleven' );
 		}
 			printf(
diff --git a/src/wp-content/themes/twentyeleven/content-gallery.php b/src/wp-content/themes/twentyeleven/content-gallery.php
index 8345686780..5f73a028bb 100644
--- a/src/wp-content/themes/twentyeleven/content-gallery.php
+++ b/src/wp-content/themes/twentyeleven/content-gallery.php
@@ -46,7 +46,9 @@
 	<p><em>
 					<?php
 					printf(
+						/* translators: 1: link attributes, 2: number of photos */
 						_n( 'This gallery contains <a %1$s>%2$s photo</a>.', 'This gallery contains <a %1$s>%2$s photos</a>.', $total_images, 'twentyeleven' ),
+						/* translators: %s: Post title */
 						'href="' . esc_url( get_permalink() ) . '" title="' . esc_attr( sprintf( __( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ) ) . '" rel="bookmark"',
 						number_format_i18n( $total_images )
 					);
@@ -75,6 +77,7 @@
 			?>
 		<span class="cat-links">
 			<?php
+			/* translators: 1: CSS classes, 2: list of categories */
 			printf( __( '<span class="%1$s">Posted in</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-cat-links', $categories_list );
 			$show_sep = true;
 			?>
@@ -90,6 +93,7 @@
 			<?php endif; // End if $show_sep ?>
 		<span class="tag-links">
 			<?php
+			/* translators: 1: CSS classes, 2: list of tags */
 			printf( __( '<span class="%1$s">Tagged</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-tag-links', $tags_list );
 			$show_sep = true;
 			?>
diff --git a/src/wp-content/themes/twentyeleven/content-image.php b/src/wp-content/themes/twentyeleven/content-image.php
index 6ed6a51a35..a28e2f5442 100644
--- a/src/wp-content/themes/twentyeleven/content-image.php
+++ b/src/wp-content/themes/twentyeleven/content-image.php
@@ -41,11 +41,13 @@
 			<div class="entry-meta">
 				<?php
 					printf(
+						/* translators: 1: the permalink, 2: date and time, 3: date and time, 4: author link, 5: author link title, 6: author display name */
 						__( '<a href="%1$s" rel="bookmark"><time class="entry-date" datetime="%2$s">%3$s</time></a><span class="by-author"> <span class="sep"> by </span> <span class="author vcard"><a class="url fn n" href="%4$s" title="%5$s" rel="author">%6$s</a></span></span>', 'twentyeleven' ),
 						esc_url( get_permalink() ),
 						get_the_date( 'c' ),
 						get_the_date(),
 						esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
+						/* translators: %s: author display name */
 						esc_attr( sprintf( __( 'View all posts by %s', 'twentyeleven' ), get_the_author() ) ),
 						get_the_author()
 					);
@@ -58,7 +60,10 @@
 				if ( $categories_list ) :
 					?>
 				<span class="cat-links">
-					<?php printf( __( '<span class="%1$s">Posted in</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-cat-links', $categories_list ); ?>
+					<?php
+					/* translators: 1: CSS classes, 2: category list */
+					printf( __( '<span class="%1$s">Posted in</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-cat-links', $categories_list );
+					?>
 				</span>
 				<?php endif; // End if categories ?>
 				<?php
@@ -67,7 +72,10 @@
 				if ( $tags_list ) :
 					?>
 				<span class="tag-links">
-					<?php printf( __( '<span class="%1$s">Tagged</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-tag-links', $tags_list ); ?>
+					<?php
+					/* translators: 1: CSS classes, 2: tag list */
+					printf( __( '<span class="%1$s">Tagged</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-tag-links', $tags_list );
+					?>
 				</span>
 				<?php endif; // End if $tags_list ?>
 
diff --git a/src/wp-content/themes/twentyeleven/content-quote.php b/src/wp-content/themes/twentyeleven/content-quote.php
index f2a958327c..0f5e8a964e 100644
--- a/src/wp-content/themes/twentyeleven/content-quote.php
+++ b/src/wp-content/themes/twentyeleven/content-quote.php
@@ -53,6 +53,7 @@
 				?>
 			<span class="cat-links">
 				<?php
+				/* translators: 1: CSS classes, 2: list of categories */
 				printf( __( '<span class="%1$s">Posted in</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-cat-links', $categories_list );
 				$show_sep = true;
 				?>
@@ -68,6 +69,7 @@
 				<?php endif; // End if $show_sep ?>
 			<span class="tag-links">
 				<?php
+				/* translators: 1: CSS classes, 2: list of tags */
 				printf( __( '<span class="%1$s">Tagged</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-tag-links', $tags_list );
 				$show_sep = true;
 				?>
diff --git a/src/wp-content/themes/twentyeleven/content-single.php b/src/wp-content/themes/twentyeleven/content-single.php
index 2615513e45..97c8d4831f 100644
--- a/src/wp-content/themes/twentyeleven/content-single.php
+++ b/src/wp-content/themes/twentyeleven/content-single.php
@@ -39,10 +39,13 @@
 			/* translators: used between list items, there is a space after the comma */
 			$tag_list = get_the_tag_list( '', __( ', ', 'twentyeleven' ) );
 		if ( '' != $tag_list ) {
+			/* translators: 1: categories list, 2: tag list, 3: permalink, 4: post title, 5: author name, 6: author URL */
 			$utility_text = __( 'This entry was posted in %1$s and tagged %2$s by <a href="%6$s">%5$s</a>. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyeleven' );
 		} elseif ( '' != $categories_list ) {
+			/* translators: 1: categories list, 2: tag list, 3: permalink, 4: post title, 5: author name, 6: author URL */
 			$utility_text = __( 'This entry was posted in %1$s by <a href="%6$s">%5$s</a>. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyeleven' );
 		} else {
+			/* translators: 1: categories list, 2: tag list, 3: permalink, 4: post title, 5: author name, 6: author URL */
 			$utility_text = __( 'This entry was posted by <a href="%6$s">%5$s</a>. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyeleven' );
 		}
 
@@ -67,11 +70,19 @@
 				?>
 			</div><!-- #author-avatar -->
 			<div id="author-description">
-				<h2><?php printf( __( 'About %s', 'twentyeleven' ), get_the_author() ); ?></h2>
+				<h2>
+				<?php
+				/* translators: %s: author name */
+				printf( __( 'About %s', 'twentyeleven' ), get_the_author() );
+				?>
+				</h2>
 				<?php the_author_meta( 'description' ); ?>
 				<div id="author-link">
 					<a href="<?php echo esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ); ?>" rel="author">
-						<?php printf( __( 'View all posts by %s <span class="meta-nav">&rarr;</span>', 'twentyeleven' ), get_the_author() ); ?>
+						<?php
+						/* translators: %s: author name */
+						printf( __( 'View all posts by %s <span class="meta-nav">&rarr;</span>', 'twentyeleven' ), get_the_author() );
+						?>
 					</a>
 				</div><!-- #author-link	-->
 			</div><!-- #author-description -->
diff --git a/src/wp-content/themes/twentyeleven/content.php b/src/wp-content/themes/twentyeleven/content.php
index 7da6cc5fa9..876ef2fe46 100644
--- a/src/wp-content/themes/twentyeleven/content.php
+++ b/src/wp-content/themes/twentyeleven/content.php
@@ -60,6 +60,7 @@
 					?>
 			<span class="cat-links">
 					<?php
+					/* translators: 1: CSS classes, 2: category list */
 					printf( __( '<span class="%1$s">Posted in</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-cat-links', $categories_list );
 					$show_sep = true;
 					?>
@@ -77,6 +78,7 @@
 					<?php endif; // End if $show_sep ?>
 			<span class="tag-links">
 					<?php
+					/* translators: 1: CSS classes, 2: tag list */
 					printf( __( '<span class="%1$s">Tagged</span> %2$s', 'twentyeleven' ), 'entry-utility-prep entry-utility-prep-tag-links', $tags_list );
 					$show_sep = true;
 					?>
diff --git a/src/wp-content/themes/twentyeleven/footer.php b/src/wp-content/themes/twentyeleven/footer.php
index 53fa696ee4..041ec2822f 100644
--- a/src/wp-content/themes/twentyeleven/footer.php
+++ b/src/wp-content/themes/twentyeleven/footer.php
@@ -32,7 +32,10 @@
 				}
 				?>
 				<a href="<?php echo esc_url( __( 'https://wordpress.org/', 'twentyeleven' ) ); ?>" class="imprint" title="<?php esc_attr_e( 'Semantic Personal Publishing Platform', 'twentyeleven' ); ?>">
-					<?php printf( __( 'Proudly powered by %s', 'twentyeleven' ), 'WordPress' ); ?>
+					<?php
+					/* translators: %s: WordPress */
+					printf( __( 'Proudly powered by %s', 'twentyeleven' ), 'WordPress' );
+					?>
 				</a>
 			</div>
 	</footer><!-- #colophon -->
diff --git a/src/wp-content/themes/twentyeleven/functions.php b/src/wp-content/themes/twentyeleven/functions.php
index 6652b79efb..004a5a6c9f 100644
--- a/src/wp-content/themes/twentyeleven/functions.php
+++ b/src/wp-content/themes/twentyeleven/functions.php
@@ -726,8 +726,8 @@ if ( ! function_exists( 'twentyeleven_comment' ) ) :
 
 						echo get_avatar( $comment, $avatar_size );
 
-						/* translators: 1: comment author, 2: date and time */
 						printf(
+							/* translators: 1: comment author, 2: date and time */
 							__( '%1$s on %2$s <span class="says">said:</span>', 'twentyeleven' ),
 							sprintf( '<span class="fn">%s</span>', get_comment_author_link() ),
 							sprintf(
@@ -784,12 +784,14 @@ if ( ! function_exists( 'twentyeleven_posted_on' ) ) :
 	 */
 	function twentyeleven_posted_on() {
 		printf(
+			/* translators: 1: The permalink, 2: time, 3: date and time, 4: date and time, 5: Author posts, 6: Author post link text, 7: Author display name  */
 			__( '<span class="sep">Posted on </span><a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date" datetime="%3$s">%4$s</time></a><span class="by-author"> <span class="sep"> by </span> <span class="author vcard"><a class="url fn n" href="%5$s" title="%6$s" rel="author">%7$s</a></span></span>', 'twentyeleven' ),
 			esc_url( get_permalink() ),
 			esc_attr( get_the_time() ),
 			esc_attr( get_the_date( 'c' ) ),
 			esc_html( get_the_date() ),
 			esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
+			/* translators: %s: Author display name */
 			esc_attr( sprintf( __( 'View all posts by %s', 'twentyeleven' ), get_the_author() ) ),
 			get_the_author()
 		);
diff --git a/src/wp-content/themes/twentyeleven/header.php b/src/wp-content/themes/twentyeleven/header.php
index 1016b6be9f..34a31806bf 100644
--- a/src/wp-content/themes/twentyeleven/header.php
+++ b/src/wp-content/themes/twentyeleven/header.php
@@ -42,6 +42,7 @@ if ( $site_description && ( is_home() || is_front_page() ) ) {
 
 	// Add a page number if necessary:
 if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
+	/* translators: %s: page number */
 	echo esc_html( ' | ' . sprintf( __( 'Page %s', 'twentyeleven' ), max( $paged, $page ) ) );
 }
 
diff --git a/src/wp-content/themes/twentyeleven/image.php b/src/wp-content/themes/twentyeleven/image.php
index 454ee95fbe..5ac7b9413f 100644
--- a/src/wp-content/themes/twentyeleven/image.php
+++ b/src/wp-content/themes/twentyeleven/image.php
@@ -31,6 +31,7 @@ get_header(); ?>
 								<?php
 									$metadata = wp_get_attachment_metadata();
 									printf(
+										/* translators: 1: time, 2: date, 3: image permalink, 4: image width, 5: image height, 6: parent permalink, 7: parent post title, 8: parent post title */
 										__( '<span class="meta-prep meta-prep-entry-date">Published </span> <span class="entry-date"><abbr class="published" title="%1$s">%2$s</abbr></span> at <a href="%3$s" title="Link to full-size image">%4$s &times; %5$s</a> in <a href="%6$s" title="Return to %7$s" rel="gallery">%8$s</a>', 'twentyeleven' ),
 										esc_attr( get_the_time() ),
 										get_the_date(),
diff --git a/src/wp-content/themes/twentyeleven/inc/theme-options.php b/src/wp-content/themes/twentyeleven/inc/theme-options.php
index 1a30475442..4e7d0a76ee 100644
--- a/src/wp-content/themes/twentyeleven/inc/theme-options.php
+++ b/src/wp-content/themes/twentyeleven/inc/theme-options.php
@@ -302,7 +302,12 @@ function twentyeleven_settings_field_link_color() {
 	<input type="button" class="pickcolor button hide-if-no-js" value="<?php esc_attr_e( 'Select a Color', 'twentyeleven' ); ?>" />
 	<div id="colorPickerDiv" style="z-index: 100; background:#eee; border:1px solid #ccc; position:absolute; display:none;"></div>
 	<br />
-	<span><?php printf( __( 'Default color: %s', 'twentyeleven' ), '<span id="default-color">' . twentyeleven_get_default_link_color( $options['color_scheme'] ) . '</span>' ); ?></span>
+	<span>
+	<?php
+	/* translators: link color */
+	printf( __( 'Default color: %s', 'twentyeleven' ), '<span id="default-color">' . twentyeleven_get_default_link_color( $options['color_scheme'] ) . '</span>' );
+	?>
+	</span>
 	<?php
 }
 
@@ -338,7 +343,12 @@ function twentyeleven_theme_options_render_page() {
 	<div class="wrap">
 		<?php screen_icon(); ?>
 		<?php $theme_name = function_exists( 'wp_get_theme' ) ? wp_get_theme() : get_current_theme(); ?>
-		<h2><?php printf( __( '%s Theme Options', 'twentyeleven' ), $theme_name ); ?></h2>
+		<h2>
+		<?php
+		/* translators: theme name */
+		printf( __( '%s Theme Options', 'twentyeleven' ), $theme_name );
+		?>
+		</h2>
 		<?php settings_errors(); ?>
 
 		<form method="post" action="options.php">
diff --git a/src/wp-content/themes/twentyeleven/search.php b/src/wp-content/themes/twentyeleven/search.php
index 62fbfc2ff8..3960b2ff3b 100644
--- a/src/wp-content/themes/twentyeleven/search.php
+++ b/src/wp-content/themes/twentyeleven/search.php
@@ -15,7 +15,12 @@ get_header(); ?>
 			<?php if ( have_posts() ) : ?>
 
 				<header class="page-header">
-					<h1 class="page-title"><?php printf( __( 'Search Results for: %s', 'twentyeleven' ), '<span>' . get_search_query() . '</span>' ); ?></h1>
+					<h1 class="page-title">
+					<?php
+					/* translators: %s: search query */
+					printf( __( 'Search Results for: %s', 'twentyeleven' ), '<span>' . get_search_query() . '</span>' );
+					?>
+					</h1>
 				</header>
 
 				<?php twentyeleven_content_nav( 'nav-above' ); ?>
diff --git a/src/wp-content/themes/twentyeleven/showcase.php b/src/wp-content/themes/twentyeleven/showcase.php
index f0b1da96f1..93f66af478 100644
--- a/src/wp-content/themes/twentyeleven/showcase.php
+++ b/src/wp-content/themes/twentyeleven/showcase.php
@@ -124,8 +124,11 @@ get_header(); ?>
 								} else {
 									$thumbnail_size = 'small-feature';
 								}
+
+								/* translators: %s: post title */
+								$title = sprintf( __( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) );
 								?>
-						<a href="<?php the_permalink(); ?>" title="<?php echo esc_attr( sprintf( __( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ) ); ?>" rel="bookmark"><?php the_post_thumbnail( $thumbnail_size ); ?></a>
+						<a href="<?php the_permalink(); ?>" title="<?php echo esc_attr( $title ); ?>" rel="bookmark"><?php the_post_thumbnail( $thumbnail_size ); ?></a>
 								<?php
 							}
 							?>
@@ -156,8 +159,11 @@ get_header(); ?>
 								} else {
 									$class = '';
 								}
+
+								/* translators: %s: post title */
+								$title = sprintf( __( 'Featuring: %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) );
 								?>
-					<li><a href="#featured-post-<?php echo esc_attr( $counter_slider ); ?>" title="<?php echo esc_attr( sprintf( __( 'Featuring: %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ) ); ?>"<?php echo $class; ?>></a></li>
+					<li><a href="#featured-post-<?php echo esc_attr( $counter_slider ); ?>" title="<?php echo esc_attr( $title ); ?>"<?php echo $class; ?>></a></li>
 						<?php endwhile; ?>
 					</ul>
 					</nav>
diff --git a/src/wp-content/themes/twentyeleven/tag.php b/src/wp-content/themes/twentyeleven/tag.php
index cec9303747..8fa97003b9 100644
--- a/src/wp-content/themes/twentyeleven/tag.php
+++ b/src/wp-content/themes/twentyeleven/tag.php
@@ -17,6 +17,7 @@ get_header(); ?>
 				<header class="page-header">
 					<h1 class="page-title">
 					<?php
+						/* translators: %s: tag title */
 						printf( __( 'Tag Archives: %s', 'twentyeleven' ), '<span>' . single_tag_title( '', false ) . '</span>' );
 					?>
 					</h1>
diff --git a/src/wp-content/themes/twentyseventeen/inc/back-compat.php b/src/wp-content/themes/twentyseventeen/inc/back-compat.php
index 3bb3ccf7ef..d9444675b3 100644
--- a/src/wp-content/themes/twentyseventeen/inc/back-compat.php
+++ b/src/wp-content/themes/twentyseventeen/inc/back-compat.php
@@ -36,6 +36,7 @@ add_action( 'after_switch_theme', 'twentyseventeen_switch_theme' );
  * @global string $wp_version WordPress version.
  */
 function twentyseventeen_upgrade_notice() {
+	/* translators: %s: The current WordPress version */
 	$message = sprintf( __( 'Twenty Seventeen requires at least WordPress version 4.7. You are running version %s. Please upgrade and try again.', 'twentyseventeen' ), $GLOBALS['wp_version'] );
 	printf( '<div class="error"><p>%s</p></div>', $message );
 }
@@ -49,6 +50,7 @@ function twentyseventeen_upgrade_notice() {
  */
 function twentyseventeen_customize() {
 	wp_die(
+		/* translators: %s: The current WordPress version */
 		sprintf( __( 'Twenty Seventeen requires at least WordPress version 4.7. You are running version %s. Please upgrade and try again.', 'twentyseventeen' ), $GLOBALS['wp_version'] ),
 		'',
 		array(
@@ -67,6 +69,7 @@ add_action( 'load-customize.php', 'twentyseventeen_customize' );
  */
 function twentyseventeen_preview() {
 	if ( isset( $_GET['preview'] ) ) {
+		/* translators: %s: The current WordPress version */
 		wp_die( sprintf( __( 'Twenty Seventeen requires at least WordPress version 4.7. You are running version %s. Please upgrade and try again.', 'twentyseventeen' ), $GLOBALS['wp_version'] ) );
 	}
 }
diff --git a/src/wp-content/themes/twentyseventeen/inc/template-tags.php b/src/wp-content/themes/twentyseventeen/inc/template-tags.php
index 2c24e4ec25..781b72725a 100644
--- a/src/wp-content/themes/twentyseventeen/inc/template-tags.php
+++ b/src/wp-content/themes/twentyseventeen/inc/template-tags.php
@@ -148,7 +148,8 @@ function twentyseventeen_front_page_section( $partial = null, $id = 0 ) {
 		wp_reset_postdata();
 	} elseif ( is_customize_preview() ) {
 		// The output placeholder anchor.
-		echo '<article class="panel-placeholder panel twentyseventeen-panel twentyseventeen-panel' . $id . '" id="panel' . $id . '"><span class="twentyseventeen-panel-title">' . sprintf( __( 'Front Page Section %1$s Placeholder', 'twentyseventeen' ), $id ) . '</span></article>';
+		/* translators: %s: The section id */
+		echo '<article class="panel-placeholder panel twentyseventeen-panel twentyseventeen-panel' . $id . '" id="panel' . $id . '"><span class="twentyseventeen-panel-title">' . sprintf( __( 'Front Page Section %s Placeholder', 'twentyseventeen' ), $id ) . '</span></article>';
 	}
 }
 
diff --git a/src/wp-content/themes/twentyseventeen/search.php b/src/wp-content/themes/twentyseventeen/search.php
index e05f85d305..7203d7fbab 100644
--- a/src/wp-content/themes/twentyseventeen/search.php
+++ b/src/wp-content/themes/twentyseventeen/search.php
@@ -16,7 +16,12 @@ get_header(); ?>
 
 	<header class="page-header">
 		<?php if ( have_posts() ) : ?>
-			<h1 class="page-title"><?php printf( __( 'Search Results for: %s', 'twentyseventeen' ), '<span>' . get_search_query() . '</span>' ); ?></h1>
+			<h1 class="page-title">
+			<?php
+			/* translators: search query */
+			printf( __( 'Search Results for: %s', 'twentyseventeen' ), '<span>' . get_search_query() . '</span>' );
+			?>
+			</h1>
 		<?php else : ?>
 			<h1 class="page-title"><?php _e( 'Nothing Found', 'twentyseventeen' ); ?></h1>
 		<?php endif; ?>
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/footer/site-info.php b/src/wp-content/themes/twentyseventeen/template-parts/footer/site-info.php
index 2f528efb1b..68883bbcd0 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/footer/site-info.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/footer/site-info.php
@@ -16,6 +16,9 @@
 	}
 	?>
 	<a href="<?php echo esc_url( __( 'https://wordpress.org/', 'twentyseventeen' ) ); ?>" class="imprint">
-		<?php printf( __( 'Proudly powered by %s', 'twentyseventeen' ), 'WordPress' ); ?>
+		<?php
+			/* translators: %s: WordPress */
+		printf( __( 'Proudly powered by %s', 'twentyseventeen' ), 'WordPress' );
+		?>
 	</a>
 </div><!-- .site-info -->
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/page/content-front-page-panels.php b/src/wp-content/themes/twentyseventeen/template-parts/page/content-front-page-panels.php
index 98b129d314..1b2447ec01 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/page/content-front-page-panels.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/page/content-front-page-panels.php
@@ -39,9 +39,9 @@ global $twentyseventeencounter;
 
 			<div class="entry-content">
 				<?php
-					/* translators: %s: Name of current post */
 					the_content(
 						sprintf(
+							/* translators: %s: Name of current post */
 							__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentyseventeen' ),
 							get_the_title()
 						)
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/page/content-front-page.php b/src/wp-content/themes/twentyseventeen/template-parts/page/content-front-page.php
index aa6e2846bf..8218af1759 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/page/content-front-page.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/page/content-front-page.php
@@ -36,9 +36,9 @@
 
 			<div class="entry-content">
 				<?php
-					/* translators: %s: Name of current post */
 					the_content(
 						sprintf(
+							/* translators: %s: Name of current post */
 							__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentyseventeen' ),
 							get_the_title()
 						)
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/post/content-audio.php b/src/wp-content/themes/twentyseventeen/template-parts/post/content-audio.php
index bfa3e19c7b..4bab71f038 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/post/content-audio.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/post/content-audio.php
@@ -78,9 +78,9 @@
 
 		if ( is_single() || empty( $audio ) ) {
 
-			/* translators: %s: Name of current post */
 			the_content(
 				sprintf(
+					/* translators: %s: Name of current post */
 					__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentyseventeen' ),
 					get_the_title()
 				)
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/post/content-gallery.php b/src/wp-content/themes/twentyseventeen/template-parts/post/content-gallery.php
index b171ecdcce..69fbb1acac 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/post/content-gallery.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/post/content-gallery.php
@@ -65,9 +65,9 @@
 
 		if ( is_single() || ! get_post_gallery() ) {
 
-			/* translators: %s: Name of current post */
 			the_content(
 				sprintf(
+					/* translators: %s: Name of current post */
 					__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentyseventeen' ),
 					get_the_title()
 				)
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/post/content-image.php b/src/wp-content/themes/twentyseventeen/template-parts/post/content-image.php
index 12cd4e272c..071a0ad185 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/post/content-image.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/post/content-image.php
@@ -55,9 +55,9 @@
 		if ( is_single() || '' === get_the_post_thumbnail() ) {
 
 			// Only show content if is a single post, or if there's no featured image.
-			/* translators: %s: Name of current post */
 			the_content(
 				sprintf(
+					/* translators: %s: Name of current post */
 					__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentyseventeen' ),
 					get_the_title()
 				)
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/post/content-none.php b/src/wp-content/themes/twentyseventeen/template-parts/post/content-none.php
index f4b1977be9..114c86c826 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/post/content-none.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/post/content-none.php
@@ -21,7 +21,12 @@
 		if ( is_home() && current_user_can( 'publish_posts' ) ) :
 			?>
 
-			<p><?php printf( __( 'Ready to publish your first post? <a href="%1$s">Get started here</a>.', 'twentyseventeen' ), esc_url( admin_url( 'post-new.php' ) ) ); ?></p>
+			<p>
+			<?php
+			/* translators: %s: Link to post-new.php */
+			printf( __( 'Ready to publish your first post? <a href="%s">Get started here</a>.', 'twentyseventeen' ), esc_url( admin_url( 'post-new.php' ) ) );
+			?>
+			</p>
 
 		<?php else : ?>
 
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/post/content-video.php b/src/wp-content/themes/twentyseventeen/template-parts/post/content-video.php
index 9f80aeae20..a77aac8466 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/post/content-video.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/post/content-video.php
@@ -77,9 +77,9 @@
 
 		if ( is_single() || empty( $video ) ) {
 
-			/* translators: %s: Name of current post */
 			the_content(
 				sprintf(
+					/* translators: %s: Name of current post */
 					__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentyseventeen' ),
 					get_the_title()
 				)
diff --git a/src/wp-content/themes/twentyseventeen/template-parts/post/content.php b/src/wp-content/themes/twentyseventeen/template-parts/post/content.php
index 3c55aa164f..1947f05a19 100644
--- a/src/wp-content/themes/twentyseventeen/template-parts/post/content.php
+++ b/src/wp-content/themes/twentyseventeen/template-parts/post/content.php
@@ -51,9 +51,9 @@
 
 	<div class="entry-content">
 		<?php
-		/* translators: %s: Name of current post */
 		the_content(
 			sprintf(
+				/* translators: %s: Name of current post */
 				__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentyseventeen' ),
 				get_the_title()
 			)
diff --git a/src/wp-content/themes/twentysixteen/footer.php b/src/wp-content/themes/twentysixteen/footer.php
index 5fff3bd91a..9f1621ff93 100644
--- a/src/wp-content/themes/twentysixteen/footer.php
+++ b/src/wp-content/themes/twentysixteen/footer.php
@@ -58,7 +58,10 @@
 				}
 				?>
 				<a href="<?php echo esc_url( __( 'https://wordpress.org/', 'twentysixteen' ) ); ?>" class="imprint">
-					<?php printf( __( 'Proudly powered by %s', 'twentysixteen' ), 'WordPress' ); ?>
+					<?php
+					/* translators: %s: WordPress */
+					printf( __( 'Proudly powered by %s', 'twentysixteen' ), 'WordPress' );
+					?>
 				</a>
 			</div><!-- .site-info -->
 		</footer><!-- .site-footer -->
diff --git a/src/wp-content/themes/twentysixteen/inc/back-compat.php b/src/wp-content/themes/twentysixteen/inc/back-compat.php
index c97940e002..cb3b7118c4 100644
--- a/src/wp-content/themes/twentysixteen/inc/back-compat.php
+++ b/src/wp-content/themes/twentysixteen/inc/back-compat.php
@@ -38,6 +38,7 @@ add_action( 'after_switch_theme', 'twentysixteen_switch_theme' );
  * @global string $wp_version WordPress version.
  */
 function twentysixteen_upgrade_notice() {
+	/* translators: %s: The current WordPress version */
 	$message = sprintf( __( 'Twenty Sixteen requires at least WordPress version 4.4. You are running version %s. Please upgrade and try again.', 'twentysixteen' ), $GLOBALS['wp_version'] );
 	printf( '<div class="error"><p>%s</p></div>', $message );
 }
@@ -51,6 +52,7 @@ function twentysixteen_upgrade_notice() {
  */
 function twentysixteen_customize() {
 	wp_die(
+		/* translators: %s: The current WordPress version */
 		sprintf( __( 'Twenty Sixteen requires at least WordPress version 4.4. You are running version %s. Please upgrade and try again.', 'twentysixteen' ), $GLOBALS['wp_version'] ),
 		'',
 		array(
@@ -69,6 +71,7 @@ add_action( 'load-customize.php', 'twentysixteen_customize' );
  */
 function twentysixteen_preview() {
 	if ( isset( $_GET['preview'] ) ) {
+		/* translators: %s: The current WordPress version */
 		wp_die( sprintf( __( 'Twenty Sixteen requires at least WordPress version 4.4. You are running version %s. Please upgrade and try again.', 'twentysixteen' ), $GLOBALS['wp_version'] ) );
 	}
 }
diff --git a/src/wp-content/themes/twentysixteen/inc/template-tags.php b/src/wp-content/themes/twentysixteen/inc/template-tags.php
index 6c500d432f..3dd96b22d0 100644
--- a/src/wp-content/themes/twentysixteen/inc/template-tags.php
+++ b/src/wp-content/themes/twentysixteen/inc/template-tags.php
@@ -49,6 +49,7 @@ if ( ! function_exists( 'twentysixteen_entry_meta' ) ) :
 
 		if ( ! is_singular() && ! post_password_required() && ( comments_open() || get_comments_number() ) ) {
 			echo '<span class="comments-link">';
+			/* translators: %s: Name of current post */
 			comments_popup_link( sprintf( __( 'Leave a comment<span class="screen-reader-text"> on %s</span>', 'twentysixteen' ), get_the_title() ) );
 			echo '</span>';
 		}
diff --git a/src/wp-content/themes/twentysixteen/search.php b/src/wp-content/themes/twentysixteen/search.php
index 0f893636fc..d6c6b041a8 100644
--- a/src/wp-content/themes/twentysixteen/search.php
+++ b/src/wp-content/themes/twentysixteen/search.php
@@ -15,7 +15,12 @@ get_header(); ?>
 		<?php if ( have_posts() ) : ?>
 
 			<header class="page-header">
-				<h1 class="page-title"><?php printf( __( 'Search Results for: %s', 'twentysixteen' ), '<span>' . esc_html( get_search_query() ) . '</span>' ); ?></h1>
+				<h1 class="page-title">
+				<?php
+				/* translators: %s: The search query */
+				printf( __( 'Search Results for: %s', 'twentysixteen' ), '<span>' . esc_html( get_search_query() ) . '</span>' );
+				?>
+				</h1>
 			</header><!-- .page-header -->
 
 			<?php
diff --git a/src/wp-content/themes/twentysixteen/template-parts/biography.php b/src/wp-content/themes/twentysixteen/template-parts/biography.php
index 9e2e5b87f9..75bc520d63 100644
--- a/src/wp-content/themes/twentysixteen/template-parts/biography.php
+++ b/src/wp-content/themes/twentysixteen/template-parts/biography.php
@@ -30,7 +30,10 @@
 		<p class="author-bio">
 			<?php the_author_meta( 'description' ); ?>
 			<a class="author-link" href="<?php echo esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ); ?>" rel="author">
-				<?php printf( __( 'View all posts by %s', 'twentysixteen' ), get_the_author() ); ?>
+				<?php
+				/* translators: %s: The post author display name */
+				printf( __( 'View all posts by %s', 'twentysixteen' ), get_the_author() );
+				?>
 			</a>
 		</p><!-- .author-bio -->
 	</div><!-- .author-description -->
diff --git a/src/wp-content/themes/twentysixteen/template-parts/content-none.php b/src/wp-content/themes/twentysixteen/template-parts/content-none.php
index b6b7e7c0b0..e84c51b642 100644
--- a/src/wp-content/themes/twentysixteen/template-parts/content-none.php
+++ b/src/wp-content/themes/twentysixteen/template-parts/content-none.php
@@ -16,7 +16,12 @@
 	<div class="page-content">
 		<?php if ( is_home() && current_user_can( 'publish_posts' ) ) : ?>
 
-			<p><?php printf( __( 'Ready to publish your first post? <a href="%1$s">Get started here</a>.', 'twentysixteen' ), esc_url( admin_url( 'post-new.php' ) ) ); ?></p>
+			<p>
+			<?php
+			/* translators: %s: Link to post-new.php */
+			printf( __( 'Ready to publish your first post? <a href="%1$s">Get started here</a>.', 'twentysixteen' ), esc_url( admin_url( 'post-new.php' ) ) );
+			?>
+			</p>
 
 		<?php elseif ( is_search() ) : ?>
 
diff --git a/src/wp-content/themes/twentysixteen/template-parts/content.php b/src/wp-content/themes/twentysixteen/template-parts/content.php
index 03b4cfb6c7..d68630007e 100644
--- a/src/wp-content/themes/twentysixteen/template-parts/content.php
+++ b/src/wp-content/themes/twentysixteen/template-parts/content.php
@@ -23,9 +23,9 @@
 
 	<div class="entry-content">
 		<?php
-			/* translators: %s: Name of current post */
 			the_content(
 				sprintf(
+					/* translators: %s: Name of current post */
 					__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentysixteen' ),
 					get_the_title()
 				)