simplemerge: replace `**opts` passed to `simplemerge()` by keyword arguments The `simplemerge` module is library code; it should not get an unmodified `opts` dict from the `simplemerge` extension. Differential Revision: https://phab.mercurial-scm.org/D12152

from __future__ import absolute_import
import pkgutil

__path__ = pkgutil.extend_path(__path__, __name__)