ceph: hex dump corrupt server data to KERN_DEBUG

Also, print fsid using standard format, NOT hex dump.

Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index a828943..6d02a16 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -602,13 +602,8 @@
 {
 	if (client->have_fsid) {
 		if (ceph_fsid_compare(&client->fsid, fsid)) {
-			print_hex_dump(KERN_ERR, "this fsid: ",
-				       DUMP_PREFIX_NONE, 16, 1,
-				       (void *)fsid, 16, 0);
-			print_hex_dump(KERN_ERR, " old fsid: ",
-				       DUMP_PREFIX_NONE, 16, 1,
-				       (void *)&client->fsid, 16, 0);
-			pr_err("fsid mismatch\n");
+			pr_err("bad fsid, had " FSID_FORMAT " got " FSID_FORMAT,
+			       PR_FSID(&client->fsid), PR_FSID(fsid));
 			return -1;
 		}
 	} else {