bug#19045: 25.0.50; [PATCH] vc-git-print-log use --follow

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: schwab@linux-m68k.org,  19045@debbugs.gnu.org
> Date: Mon, 12 Feb 2018 23:50:55 +0200
> 
> > Even if it's true, it means --follow doesn't do any harm when invoked
> > on directories, and we shouldn't disallow that.
> 
> I don't know the reason why disallowing directories was implemented
> in the first place.  Maybe ‘git log --follow’ failed on directories
> in some older git versions?  Wouldn't it be safer to leave the code
> that checks for directories and doesn't add ‘--follow’ for this case?

Sorry, I was confused and thought that you also added the
non-directory restriction.  I agree that we should not modify the code
that checks for directories, certainly not on the release branch.

Thanks.