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

[James Henstridge]

On 01/06/06, John A Meinel <john at arbash-meinel.com> wrote:
> I think Aaron and I are both +1 on the code level change. But haven't
> decided if we want timestamps in the output. And I've been wanting to
> just wait a little bit to see if any discussion comes up.
>
> I'm pretty middle of the road, so if adding timestamps makes it easier
> to apply with patch, I guess I'm overall positive on it.
>
> Note that it will probably slightly effect revision bundles. I'm not
> positive, but I know we expect to be able to round trip nano-second
> precision timestamps. So we have to include the high-precision
> somewhere, and then we will also be displaying a low-precision one for
> each file.

It should be pretty easy to add nanosecond precision to the dates, if
that would help.

James.