hgext3rd/__init__.py

path: extract sub-option logic into its own method

We will need to re-use this logic for `path://` so we first extract it into its own method.

Differential Revision: https://phab.mercurial-scm.org/D10262

# name space package to host third party extensions
from __future__ import absolute_import
import pkgutil

__path__ = pkgutil.extend_path(__path__, __name__)