config: use the right API to access template access
Preventing direct access to the underlying dict will help a coming refactoring
of `config`.
Differential Revision: https://phab.mercurial-scm.org/D9922
from __future__ import absolute_import, print_function
import sys
for line in sys.stdin:
if line.lower() in ("message-id: \n", "in-reply-to: \n"):
line = line[:-2]
print(line, end="")