bug#38044: 27.0.50; There should be an easier way to look at a specific vc commit

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: dgutov@yandex.ru,  larsi@gnus.org,  stephen.berman@gmx.net,
>   38044@debbugs.gnu.org
> Date: Wed, 27 Nov 2019 23:32:04 +0200
> 
> >> > So what's the idea here? Gracefully degrading to just showing a log entry
> >> > when the backend doesn't support the WITH-DIFF feature?
> >>
> >> Yes, if a backend doesn't support WITH-DIFF, then do nothing special.
> >
> > Is there a command in the log buffer to show the diffs if the user
> > wants that?
> 
> Yes, the command is log-view-diff.

Then I think we are okay here: if a backend doesn't support the likes
of "log -p", and the user wants to see the diffs, they can invoke that
command manually.

Thanks.