Tiny patch for bug in revert API

[Matt Mackall]

On Fri, 2010-08-13 at 14:07 -0400, Xavier Snelgrove wrote:
> Hi all,
> 
> Please let me know if I'm submitting this patch incorrectly, as I
> haven't done this before. It fixes a bug in the python API to the
> "revert" command that required a date parameter to be passed in. It's
> modifies all of 2 lines of code, and I believe it is correct.

Queued, thanks. I've tweaked the summary.

-- 
Mathematics is the supreme nostalgia of our time.