mercurial/templates/json/changelist.tmpl

templater: use pycompat.sysbytes to bytes-ify some __name__ attrs

Spotted by yuya in review of e87e62b7fc0b.

Differential Revision: https://phab.mercurial-scm.org/D1145

\{
  "node": {node|json},
  "changeset_count": {changesets|json},
  "changesets": [{join(entries%changelistentry, ", ")}]
}