rust-chg: suppress panic while writing chg error to stderr
Otherwise "chg >/dev/full 2>&1" would exit with 101. Spotted by test-basic.t.
from __future__ import absolute_import
from mercurial.i18n import _
from mercurial import (
changegroup,
error,
extensions
)
def abort(orig, *args, **kwargs):
raise error.Abort(_('this is an exercise'))
def uisetup(ui):
extensions.wrapfunction(changegroup, 'getbundler', abort)