Fix deprecation warning on AMP validation post edit screen

thelovekesh · thelovekesh · commit 68745e4fe1dd · 2023-11-01T13:55:03.000+05:30
diff --git a/includes/validation/class-amp-validated-url-post-type.php b/includes/validation/class-amp-validated-url-post-type.php
@@ -167,7 +167,7 @@ public static function register() {
 					'not_found'          => __( 'No validated URLs found', 'amp' ),
 					'not_found_in_trash' => __( 'No forgotten validated URLs', 'amp' ),
 					'search_items'       => __( 'Search validated URLs', 'amp' ),
-					'edit_item'          => '', // Overwritten in JS, so this prevents the page header from appearing and changing.
+					'edit_item'          => ' ', // Overwritten in JS, so this prevents the page header from appearing and changing.
 				],
 				'supports'     => false,
 				'public'       => false,
