D581: scmutil: add formatter a optional arg to cleanupnodes to show hash changes

[quark (Jun Wu)]

quark added a comment.


  In the previous version, I have suggested making `changes` part of template language instead of a flag, like `-T '{changes|json}'` instead of `--changes -T 'json'`. That's generally more flexible because people can use the template language (ex. if they only want newnode, or they want colors, etc.). Have you considered that? Or does that have some technical difficulties?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D581

To: pulkit, #hg-reviewers
Cc: quark, akushner, mercurial-devel