warning message from PHP because parameter passed by reference to preg_match function

Message:

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of preg_match(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in mydomain.com/sites/all/modules/gtranslate_links/gtranslate_links.module on line 34

I fixed the warning replacing the line:

if (preg_match('/([a-z]{2})\.[^.]*$/', $file, &$matches) > 0) {

to:

if (preg_match('/([a-z]{2})\.[^.]*$/', $file, $matches) > 0) {