.arcconfig

setup: preserve version part after the "+" on Windows

Code introduced in early 2010 (fb203201ce30) was dropping that part after "+".
The rational is to preserve version on the format w.x.y.z where each part is a
number. However we have not been using that format for a while (e.g. the rc
suffix) and nobody reported any fire.

So I am assuming that this code serve no purpose and I am dropping it. We can
reintroduce a newer version of it (that would actually achieve its purpose) in
the future if needed.

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