nfsd4: stid display should preserve on-the-wire byte order

When we decode the stateid we byte-swap si_generation.

But for simplicity's sake and ease of comparison with network traces,
it's better to display the whole thing in network order.
Reported-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4state.c

@@ -2424,7 +2424,8 @@ static void nfs4_show_owner(struct seq_file *s, struct nfs4_stateowner *oo)
 
 static void nfs4_show_stateid(struct seq_file *s, stateid_t *stid)
 {
-	seq_printf(s, "0x%16phN", stid);
+	seq_printf(s, "0x%.8x", stid->si_generation);
+	seq_printf(s, "%12phN", &stid->si_opaque);
 }
 
 static int nfs4_show_open(struct seq_file *s, struct nfs4_stid *st)