Change Details

Refs D21679 This updates Arcanist to be able to check whether the version of Mercurial supports using `{p1.node}` template format vs. `{p1node}`.

Refs D21679 (phabricator changes) This updates Arcanist to be able to check whether the version of Mercurial supports using `{p1.node}` template format vs. `{p1node}`.

Refs D21679 (phabricator changes) This updates Arcanist to be able to check whether the version of Mercurial supports using `{p1.node}` template format vs. `{p1node}`.