Nginix: WordPress Multisite subdomains rules

Hello,
On tutorial you say

 #WPMU Files
        location ~ ^/files/(.*)$ {
                try_files /wp-content/blogs.dir/$blogid/$uri /wp-includes/ms-files.php?file=$1 ;
                access_log off; log_not_found off;      expires max;
        }

But ms-files.php its not exist anymore on last version of wp, we have to add something else?