Re: [libvirt PATCH] news: Document that we build with musl

A bit of effort by me and Michal helped make this the case, and it helped us uncover some potential issues. I am not documenting it as supported or adding an Alpine container into the CI, but since there were some distribution bugs mentioning libvirt issues I thing it would be nice of us to notify those distribution maintainers that read our release news. Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com&gt;