Coding Standards: Upgrade WPCS to 1.0.0

WPCS 1.0.0 includes a bunch of new auto-fixers, which drops the number of coding standards issues across WordPress significantly. Prior to running the auto-fixers, there were 15,312 issues detected. With this commit, we now drop to 4,769 issues.

This change includes three notable additions:
- Multiline function calls must now put each parameter on a new line.
- Auto-formatting files is now part of the `grunt precommit` script. 
- Auto-fixable coding standards issues will now cause Travis failures.

Fixes #44600.



git-svn-id: https://develop.svn.wordpress.org/trunk@43571 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/plugin-editor.php

@@ -298,7 +298,7 @@ if ( ! in_array( 'plugin_editor_notice', $dismissed_pointers, true ) ) :
 	} else {
 		$return_url = admin_url( '/' );
 	}
-?>
+	?>
 <div id="file-editor-warning" class="notification-dialog-wrap file-editor-warning hide-if-no-js hidden">
 	<div class="notification-dialog-background"></div>
 	<div class="notification-dialog">
@@ -315,7 +315,7 @@ if ( ! in_array( 'plugin_editor_notice', $dismissed_pointers, true ) ) :
 		</div>
 	</div>
 </div>
-<?php
+	<?php
 endif; // editor warning notice
 
 include( ABSPATH . 'wp-admin/admin-footer.php' );