phabsend: show associated Differential Revisions with --confirm Often people running `phabsend --confirm` just want to check whether a commit will trigger a creation of new Differential Revision, or update an existing one. This patch implements that. The `--confirm` message was changed to use node instead of revision number to be consistent with what `phabsend` outputs. An example output looks like: D487 - a80f447973a0 test-extension: enable demandimport explicitly D494 - cf440ea6e47e test-casecollision-merge: fix the test NEW - 0a6b97147128 phabsend: polish the docstring a bit Send the above changes to https://phab.mercurial-scm.org/ (yn)? Differential Revision: https://phab.mercurial-scm.org/D514