[MERGE][328007] Fixed problem with `log -p` and non-ascii content of files: show_diff should write the diff to exact [stdout] stream.

[James Westby]

On Thu, 2009-03-12 at 08:33 +0200, Alexander Belchenko wrote:
> > This seems to change the contract of the method, does it work if I pass
> > in a StringIO to receive the diff?
> 
> Excuse my ignorance: what's "contract of the method"?

It means that it changes the way the method works. I thought that it
would require to_file to be a StreamWriter, but I now see that I
was wrong about that.

> This patch don't change behavior of existing code. But my first patch does change,
> because require only bytestream, while this patch accepts both bytestream and
> encoded stream.

Yes, sorry, I see what it is doing now, and I think it is good, so 
BB:approve.

Bob, do you think this should go in to 1.13 as well?

Thanks,

James