cad/gerbv can be helped

[Ash Gokhale]

This is the possible culprit from their  git per Tim's  analysis, I'm
unable to check a specimen of the distfile with the incorrect signature  as
it is unavailable and the original was not built from the
gerbv-2-7-RELEASE tag.
https://github.com/agokhale/gerbv-git/commit/f9df7f32d7ee60988b5608ae7f0faee60e906591
commit f9df7f32d7ee60988b5608ae7f0faee60e906591
Author: Sergey Alyoshin <alyoshin.s at gmail.com>
Date:   Mon Dec 17 21:02:01 2018 +0300
    Update README-cvs.txt to README-git.txt

I'm not sure what there is to do here except accept the changes or let this
port go.
I've canned a version of the port that works for me(tm), and gone over the
recent commit history for obviously
untoward behaviour.
https://github.com/agokhale/freebsd-ports-cad-gerbv

I've also created a readonly copy of the whole distro to browse it as the
source git is a bit unfriendly.
https://github.com/agokhale/gerbv-git

On Sun, Dec 29, 2019 at 6:24 AM Li-Wen Hsu <lwhsu at freebsd.org> wrote:
>
> On Sat, Dec 28, 2019 at 6:13 AM Tim Rice <tim at xinuos.com> wrote:
> > How about checking the git log and doing a git diff.
> > git clone git://git.geda-project.org/gerbv.git
> >
> > Looks like README-cvs.txt was pulled and README-git.txt added.
>
> That should also work. Ash, Could you also check these?
>
> Thanks,
> Li-Wen