[Libcdio-devel] libdio 2.1.1 released

[Rocky Bernstein]

Libcdio 2.1.1 has now been released. You see what has changed and get
tarballs from github now:
https://github.com/libcdio/libcdio/releases/tag/2.1.1

Thanks again to all who have contributed in the last 7 years since the last
release.

I haven't been able to get the key signing on ftp.gnu.org working so get
tarballs from github.