.arcconfig

sshpeer: don't read(0)

read(0) is essentially a no-op. Let's avoid the function call, overhead,
and extra test output by not performing it.

Differential Revision: https://phab.mercurial-scm.org/D2581

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