view .arcconfig @ 36520:a7fbe11a5d59

templatekw: add compatdict() as a replacement for showdict()

This is mostly a copy of showdict(), which will be deprecated later. See
the docstring for why it's called a "compat" dict.

showenvvars() is ported to the new API as an example.

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