tests: show that hg log --debug output differs from {file*} template keywords
hg log --debug -T xml doesn't differ, but let's test it because we can.
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)