view .arcconfig @ 51248:8b243e2a3bc4

rust-index: a property to identify the Rust index as such

Will be useful soon in `mercurial.scmutil` and potentially elsewhere

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