.arcconfig

share: convert EOL of hgrc before writing to bytes IO

Text IO is useless on Python 3 as it must be a unicode stream.

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