commands: drop exclamation mark in abort message

mercurial/commands.py

@@ -4219,7 +4219,7 b' def phase(ui, repo, *revs, **opts):'
     revs = list(revs)
     revs.extend(opts['rev'])
     if not revs:
-        raise util.Abort(_('no revisions specified!'))
+        raise util.Abort(_('no revisions specified'))
 
     lock = None
     ret = 0