tests/crashgetbundler.py

exchange: use context manager for bundle1 unbundling

The lazy locking is not used for bundle1, so using a regular context
manager is clearer.

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)