Add a return description to the DocBlock for `WP_Posts_List_Table->is_base_request()`.

See [31828]. See #31888.


git-svn-id: https://develop.svn.wordpress.org/trunk@32009 602fd350-edb4-49c9-b593-d223f7449a82

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

@@ -149,11 +149,11 @@ class WP_Posts_List_Table extends WP_List_Table {
 	}
 
 	/**
-	 * Determine if the current view is the "All" view
+	 * Determine if the current view is the "All" view.
 	 *
 	 * @since 4.2.0
 	 *
-	 * @return boolean
+	 * @return bool Whether the current ivew is the "All" view.
 	 */
 	protected function is_base_request() {
 		if ( empty( $_GET ) ) {