RFC 3879 "formally deprecates" site-local IPv6 addresses.  We
interpret that to mean that the scope ID is ignored for all but
link-local addresses.
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Acked-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>