Subject: On <https://guix.gnu.org/packages/>, package source links are broken.

From: Alex ter Weele <[email-masked]>
Date: Tue, 04 Feb 2020 11:22:20 -0600

For example, <https://guix.gnu.org/packages/unicode-emoji-12.0/> links
to
<https://git.savannah.gnu.org/cgit/guix.git/tree//gnu/store/wfk1qhx56qsyyi03s98ihy9370298xfm-guix-module-union/share/guile/site/3.0/gnu/packages/unicode.scm#n64>,
which 404s.

Relevant discussion from #guix:
<http://logs.guix.gnu.org/guix/2020-02-04.log#175447>.