.arcconfig

cmdutil: use internal separators when building the terse list

Status uses internal separators, so this is more correct.  See c974320d20b9 and
362096cfdb1f.  A utility method is still needed, so that the paths starting with
'/' aren't created when `self.path` is empty.

{
    "conduit_uri": "https://phab.mercurial-scm.org/api",
    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}