Fixed #3878 and #3901: function filter_var missing

Till Brehm

2016-05-26 30aae443d7732380a9f0c243d88015132a9a2875

 interface/web/tools/interface_settings.php

@@ -126,7 +126,7 @@
         print '<script type="text/javascript">document.location.reload();</script>';
         exit;
      }
      else parent::onShow();
      //else parent::onShow();
   }