.arcconfig

revlog: fix typo in 'buildtext' name

There are no such things as 'deltacomputer._buildtext'. I'm not sure why this
code never ran, but we better fix the typo.

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