phase: when phase cannot be reduced, hint at --force and return 1 (BC) Before, trying to change the phase of a "public" node to "draft" would result in: $ hg phase --draft . no phases changed [0] With this patch: $ hg phase --draft . cannot move 1 changesets to a more permissive phase, use --force no phases changed [1] On partial failures, the exit status is now 1 instead of 0 and the number of changed nodes is displayed while it was only with --verbose. It seems useful to tell the user that despite the apparent failure, something changed. $ hg phase --draft '5 or 7' cannot move 1 changesets to a more permissive phase, use --force phase changed for 1 changesets [1]