view .arcconfig @ 37388:764ada920db5

githelp: use revsymbol() for looking up symbol

I don't know if we should be using revsingle() here, so I was
conservative and switched to revsymbol().

Differential Revision: https://phab.mercurial-scm.org/D3156

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