DG> On 04.02.2019 05:55, Ian Dunn wrote:
    >> +  ;; No nil option, since there's no `vc-revert-switches' variable.

    DG> nil should still work (vc-switches checks whether vc-revert-switches is bound,
    DG> it's not an error), and it would probably be more intuitive.

I see your point.  `vc-bzr-log-switches' does this as well.  I've updated the patch to use nil instead of t.