copies: clarify the return of _merge_copies_dict
I misused that function twice in the past few days, so lets clarify the API.
Differential Revision: https://phab.mercurial-scm.org/D9418
# mergeutil.py - help for merge processing in mercurial
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
from .i18n import _
from . import error
def checkunresolved(ms):
if list(ms.unresolved()):
raise error.StateError(
_(b"unresolved merge conflicts (see 'hg help resolve')")
)