fixed gnu version

config-dist.php

@@ -16,7 +16,7 @@
 //                                                                       //
 // This program is free software; you can redistribute it and/or modify  //
 // it under the terms of the GNU General Public License as published by  //
-// the Free Software Foundation; either version 2 of the License, or     //
+// the Free Software Foundation; either version 3 of the License, or     //
 // (at your option) any later version.                                   //
 //                                                                       //
 // This program is distributed in the hope that it will be useful,       //