[sr-dev] why git push fails

i tried to push a commit, but push failed like this:

$ eg push jh@git.sip-router.org's password: Counting objects: 9, done. Delta compression using up to 2 threads. Compressing objects: 100% (5/5), done. Writing objects: 100% (5/5), 1.19 KiB, done. Total 5 (delta 4), reused 0 (delta 0) error: hooks/update exited with error code 1 error: hook declined to update refs/heads/master To ssh://jh@git.sip-router.org/sip-router ! [remote rejected] master -> master (hook declined) error: failed to push some refs to 'ssh://jh@git.sip-router.org/sip-router'

the error message does not say anything useful to normal user.

-- juha