test-log-linerange: open binary file in binary mode The '\n' characters were being translated on Windows, throwing off hg and git hashes, as well as the file content in the diff.

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