Adrian Buehlmann <adrian@cadifra.com> [Wed, 22 Jun 2011 15:34:33 +0200] rev 14721
revert: be more helpful on uncommitted merges
BEFORE:
$ hg revert
abort: no files or directories specified
(use --all to discard all changes)
AFTER:
$ hg revert
abort: no files or directories specified
(uncommitted merge, use --all to discard all changes, or 'hg update -C .' to abort the merge)