Loader image not inserted correctly.

On a fresh install of the jail module, my loader image was not diplaying.

I looked further into jail.module and saw that the url to the image that was being used in theme_jail_formatter was this:
/sites/all/modules/jail/white.gif

I have changed the place holder path to web accesible url using file_create_url resulting in the function looking like this:
http://example.com.au/mysite/sites/all/modules/jail/white.gif

Patch follows.