Bugfix: Ensure functions/functions.php in included only once. (PowerDNS)

app/admin/powerDNS/record-edit-result.php

@@ -5,7 +5,7 @@
  ***************************/
 
 /* functions */
-require dirname(__FILE__) . '/../../../functions/functions.php';
+require_once( dirname(__FILE__) . '/../../../functions/functions.php' );
 
 # initialize user object
 $Database = new Database_PDO;