kenegozi/testing-issues — Issue #14: Display message at the end of 'git push' command
Author: kenegozi
Created: 2012-01-06 03:38:12+00:00
State: open

I think this is explain in 'git receive-pack --help' under the 'post-receive Hook' section. My guess is that anything you echo from $GIT_DIR/hooks/post-receive gets displayed by the git client.