tests/helper-killhook.py

censor: make rhg fall back to python when encountering a censored node

This is to make it support censor.policy=ignore without having
to duplicate that logic.

Also, change the censor test in such a way that it uses rhg now,
because extensions are disabled except when we call [hg censor].

Differential Revision: https://phab.mercurial-scm.org/D12607

import os


def killme(ui, repo, hooktype, **wkargs):
    os._exit(80)