Fixed a error in OS detection code for CentOS.

Till Brehm

2014-09-22 f02be96750e48859cc63f1f2b64a86a9202178b4

 interface/web/admin/system_config_edit.php

@@ -43,6 +43,7 @@

//* Check permissions for module
$app->auth->check_module_permissions('admin');
$app->auth->check_security_permissions('admin_allow_system_config');

// Loading classes
$app->uses('tpl,tform,tform_actions');