remove one empth line

core/framework/libraries/model.php

@@ -1112,7 +1112,6 @@ class ModelDb
     {
         $joinStr = '';
         if (false === strpos($options['table'],',')) return null;
-//        if (false === strpos(null,',')) return null;
 
         $table = explode(',',$options['table']);
         $on = explode(',',$options['on']);