bisect: correct message about aborting an in-progress bisect (issue6527) By using a custom cmdhint message here we're avoiding automatic hint generation in _statecheck.hint(), which would suggest 'hg bisect --continue' and 'hg bisect --abort' (neither of which is a valid option). This patch is only fixing the message about in-progress bisect, it doesn't modify the unfinished state checking logic.