bug#60725: guix lint thinks 2019111-0.7e76d75 is older than 20191111

[Jelle Licht]

Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:

> Hi Guix,
>
> If you run 'guix lint emacs-enh-ruby-mode', it'll print this:
>
> --8<---------------cut here---------------start------------->8---
> emacs-enh-ruby-mode@2019111-0.7e76d75: can be upgraded to 20191111
> --8<---------------cut here---------------end--------------->8---
In this particular case, 2019111 seems to have been a typo in the first
place.  (It misses out on a '1' in our package record).

AFAIK, any sane versioning scheme would assert that 20191111 > 2019111-anything.