Media: Maintain the functionnality of the deprecated WP_Media_List_Table::column_desc() method.

Follow-up to [55159].

Props peterwilsoncc, costdev, mukesh27.
Fixes #39710.


git-svn-id: https://develop.svn.wordpress.org/trunk@55249 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/class-wp-media-list-table.php

@@ -503,6 +503,8 @@ class WP_Media_List_Table extends WP_List_Table {
 	 */
 	public function column_desc( $post ) {
 		_deprecated_function( __METHOD__, '6.2.0' );
+
+		echo has_excerpt() ? $post->post_excerpt : '';
 	}
 
 	/**