I18N: Capitalize translator comments consistently, add trailing punctuation.

Includes minor code layout fixes.

See #44360.

git-svn-id: https://develop.svn.wordpress.org/trunk@45932 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/image-edit.php

@@ -60,7 +60,7 @@ function wp_image_editor( $post_id, $msg = false ) {
 		<p>
 			<?php
 			printf(
-				/* translators: %s: image width and height in pixels */
+				/* translators: %s: Image width and height in pixels. */
 				__( 'Original dimensions %s' ),
 				$meta['width'] . ' &times; ' . $meta['height']
 			);