tests/crashgetbundler.py

keepalive: implement _close_conn() so closes are known

Keepalives were not working on Python 3 because
http.client.HTTPResponse was refactored to call _close_conn()
instead of close(). Our custom close() is what returns inactive
connections to the available state.

We better support Python 3 by implementing a _close_conn().

Differential Revision: https://phab.mercurial-scm.org/D5720

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)