GNU 8sync 0.4.1, fixes 0.4.0 packaging

[Christopher Allan Webber]

It turns out there was a bug in 8sync 0.4.0's packaging... it installed
to Guile 2.0's load path, whereas 8sync is for Guile 2.2 only.  This is
fixed.

Full announcement:
  https://www.gnu.org/software/8sync/news/8sync-0-4-1-released.html