After installing gitosis I had unpleasant error messages spewing all over my screen each time I ran git push or git pull.

Hushing git push

Edit your /path/to/project/.git/config file and add this block:

[branch "master"] 
    remote = origin 
    merge = refs/heads/master

Hushing git pull:

Run this command in your project directory.

$ cd /path/to/project
$ git config push.default current

Ta-da!