Add @return for WP_Query::parse_search(). props tivnet. fixes #25894.

git-svn-id: https://develop.svn.wordpress.org/trunk@26061 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/query.php

@@ -1911,8 +1911,9 @@ class WP_Query {
 	 *
 	 * @since 3.7.0
 	 *
-	 * @global type $wpdb
+	 * @global wpdb $wpdb
 	 * @param array $q Query variables.
+	 * @return string WHERE clause.
 	 */
 	protected function parse_search( &$q ) {
 		global $wpdb;