patch: properly escape \ in string literals Python 3.8 will emit a SyntaxWarning for str/bytes with invalid escapes. This commit addresses 4 occurrences where we had a bare \ in a str/bytes. Differential Revision: https://phab.mercurial-scm.org/D5818

# name space package to host third party extensions
from __future__ import absolute_import
import pkgutil
__path__ = pkgutil.extend_path(__path__, __name__)