D933: scmutil: add a new function to show changes after a command

[pulkit (Pulkit Goyal)]

pulkit abandoned this revision.
pulkit added a comment.


  Abandoning in favor of https://phab.mercurial-scm.org/D1173.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D933

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