py3: fix handling of keyword arguments at more places
The keys of keyword arguments of Python 3 should be str, which is why we need to
prevent getting the b'' prefix added by the transformer or convert keys to str
using pycompat.strkwargs()
Differential Revision: https://phab.mercurial-scm.org/D2420
from __future__ import absolute_import
import pkgutil
__path__ = pkgutil.extend_path(__path__, __name__)