[BUG] git push --quiet fails with older versions

Hi guys,

my distro updated git to 1.7.6.1. Now git push --quiet, used in various
scripts, blows up against 1.7.6. I don't know how backwards compatible
git tries to be, but in my opinion that seems like a regression for a
patchlevel release.

The problem seems to be that the remote git receive-pack does not
understand --quiet. Maybe it is possible to check for the remote version
before sending incompatible commandline parameters?

Quick demo:

lead:ssh$ git version
git version 1.7.6.1
lead:ssh$ git push
Everything up-to-date
lead:ssh$ git push -q
usage: git receive-pack <git-dir>
fatal: The remote end hung up unexpectedly

The remote uses:
radon:~$ git version
git version 1.7.6

Please keep me in CC, I'm not subscribed.

Tobias