Indentation.

libraries/common.lib.php

@@ -2854,6 +2854,7 @@ function PMA_expandUserString($string, $escape = NULL) {
         '@PHPMYADMIN@' => $phpmyadmin_version,
         );
 
+    /* Optional escaping */
     if (!is_null($escape)) {
         foreach($replace as $key => $val) {
             $replace[$key] = $escape($val);