annotate .arcconfig @ 43331:90ee1f61504e stable

py3: fix generated non-ascii message in test-notify.t

The resulting "Subject:" header contains an encoded word in Python 3 so
we have to add distinct outputs for Python 3 but underlying values are
the same:

    >>> from email.header import decode_header
    >>> decode_header('=?utf-8?b?w6AuLi4=?=')
    [(b'\xc3\xa0...', 'utf-8')]

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