Running Redaxo 4.4.x On Nginx related question

I am referring to this HowTo: http://www.howtoforge.com/running-redaxo-4.4.x-on-nginx-lemp-on-debian-wheezy-ubuntu-12.10

There is one config line that looks like this:

Code:

location / {                 try_files $uri $uri/ /index.php?$args;        }

While here: https://timmehosting.de/redaxo-hosting-auf-nginx

it looks different:

Code:

 location / {                try_files $uri $uri/ /index.php$is_args$args;   }

Which one is right?