log: do no expect templateresources() returning a dict
The resources dict will be replaced with new resource mapper object, which
won't implement __getitem__(key). Share the whole resources object with
_graphnodeformater() to make porting easier.
{
"conduit_uri": "https://phab.mercurial-scm.org/api",
"repository.callsign": "HG",
"arc.land.onto.default": "@",
"base": "hg:.^"
}