ceph: use %pU to print uuid (fsid)

Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index f2f5332..968dc5a 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -361,8 +361,8 @@
 	int ret = 0;
 	char name[80];
 
-	snprintf(name, sizeof(name), FSID_FORMAT ".client%lld",
-		 PR_FSID(&client->fsid), client->monc.auth->global_id);
+	snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
+		 client->monc.auth->global_id);
 
 	client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
 	if (!client->debugfs_dir)