[MERGE] add modification dates to diff output, get rid of /dev/null (bug #43033)

[Martin Pool]

On  6 Jun 2006, James Henstridge <james.henstridge at gmail.com> wrote:
> Revision 1717 of http://people.ubuntu.com/~jamesh/bzr/bzr.diff-output
> should be up to date with bzr.dev r1740 with all tests passing and
> should merge cleanly.

Thanks, merged.

-- 
Martin