Coding Standards: Document intentional case block fall-throughs.

Fixes `PSR2.ControlStructures.SwitchDeclaration.TerminatingComment` violations.

See #45934.



git-svn-id: https://develop.svn.wordpress.org/trunk@44565 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/general-template.php

@@ -655,6 +655,7 @@ function get_bloginfo( $show = '', $filter = 'raw' ) {
 					'<code>url</code>'
 				)
 			);
+			// Intentional fall-through to be handled by the 'url' case.
 		case 'url':
 			$output = home_url();
 			break;