compat: make topics compatible across change to cmdutil.commitstatus()
cmdutil.commitstatus()
was changed in
https://phab.mercurial-scm.org/D9257 so it has a new tip
argument. This patch adds compatibility with that. It was harder than
I expected because the callers all pass the arguments as positional,
so we can't look for opts
or tip
in the kwargs
. I instead
extracted much of the override to a helper. I think the result is
okay.