tests/crashgetbundler.py

ui: replace `self._ferr` with identical `dest`

Originally, it was part of a larger change that was abandoned. IMHO it makes the
code slightly cleaner and saves one attribute access, so I decided to send it
anyway instead of throwing it away.

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)