journal: do not pass in repolookuperror string to template (BC) This doesn't look like data, but a warning message.

journal: inline formatted nodes and date into expression The variable name "str" was misleading since these values aren't always strings.

journal: unify template name for "nodes" (BC) This is a part of the name unification. https://www.mercurial-scm.org/wiki/GenericTemplatingPlan#Dictionary .. bc:: ``{oldhashes}`` and ``{newhashes}`` in journal template are renamed to ``{oldnodes}`` and ``{newnodes}`` respectively.