allow underscore in ALIAS name (Fixes: #3866)

Florian Schaal

2016-04-30 8beb039f0b7d23b03f7963c3a56c8dde65af3b6b

 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();
   }