php compatability warnings addressed

modules/Settings/Vtiger/models/Module.php

@@ -105,7 +105,10 @@ class Settings_Vtiger_Module_Model extends Vtiger_Base_Model {
* @return Settings_Vtiger_Module_Model instance
*/
public static function getInstance() {
-            $name='Settings:Vtiger';
+            list($name) = func_get_args();
+            if(empty($name)){
+                $name='Settings:Vtiger';
+            }
$modelClassName = Vtiger_Loader::getComponentClassName('Model', 'Module', $name);
return new $modelClassName();
}