log-view-diff

[Nick Roberts]

The doc for log-view-diff says:

  "Get the diff for several revisions.
If the point is the same as the mark, get the diff for this revision.
Otherwise, get the diff between the revisions
were the region starts and ends."

but the implementation requires that mark is active:

  (interactive
   (list (if mark-active (region-beginning) (point))
         (if mark-active (region-end) (point))))

Clearly they should be consistent, but I'm not sure which should change.

Nick