[MERGE] Implement a --diff-command option for bzr diff.

[Matthieu Moy]

Aaron Bentley <aaron.bentley at utoronto.ca> writes:

> Actually, I find the difftools plugin does a great job of running
> external diff tools.

Ah, I had missed this one.

> But I don't have an objection to doing it in the core. I'll give
> this a careful review later.

Well, since you have the --diff-options, I think --diff-command is a
natural extension of it.

-- 
Matthieu