[bug#72400] [PATCH] services: gitile: Allow to set user and group.

[Evgeny Pisemsky]

Hello! It does not work, and that is the reason for this patch.

At this point group access is not enough, I have to run gitile from
git user (of gitolite) who owns repositories. Same for fcgiwrap.

This problem is related to the change in libgit2, and for a long time
I just kept it downgraded, but this cannot be forever.

I also tried to play with safe-directory option without any success,
but even if it worked setting config for every service that works with
git seems like a huge overhead.

Changing default user to git may be quite radical, but since the
documentation states this:

> Gitile works best in collaboration with Gitolite, and will serve the
> public repositories from Gitolite by default.

I think it is sane.