py3: byteify contrib/check-config.py The corresponding *.t still fails because of bytes (with a 'b' prefix) vs str printing, but no longer crashes. # skip-blame for b'' prefixing

tests: quote PYTHON usage Python3 defaults to installing under "Program Files".

py3: add a missing b'' for Windows I tried ./contrib/byteify-strings.py, but there were way too many changes (and most looked wrong). This was hit with test-check-interfaces.py. # skip-blame for b'' prefixes

log: make changesetformatter pass in changectx to formatter It wasn't necessary before, but user templates may have keywords that aren't filled in by the changesetformatter.

journal: use changesetformatter to properly nest list of commits in JSON Before, two separate JSON documents were interleaved. I chose the field name "changesets" over the option name "commits", since each entry is called a "changeset" in log templates.

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.