Packaging: fix broken path for Fedora 31
Packaging: fix broken path for Fedora 31

/usr/sbin/hardlink -> /usr/bin/hardlink in cvmfs-universal.spec

DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs