tests: fix deprecation warning about regex flags not at beginning of expr
This may only show up when running the tests under python3.6+. Currently the
only test that does this is test-patchbomb-tls.t, and it only uses (?i), so
that's all that's handled at the moment.
Differential Revision: https://phab.mercurial-scm.org/D7552
from __future__ import absolute_import
import pkgutil
__path__ = pkgutil.extend_path(__path__, __name__)