ceph: include auth method in error messages

Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/auth_none.c b/fs/ceph/auth_none.c
index 8cd9e3a..24407c1 100644
--- a/fs/ceph/auth_none.c
+++ b/fs/ceph/auth_none.c
@@ -94,6 +94,7 @@
 }
 
 static const struct ceph_auth_client_ops ceph_auth_none_ops = {
+	.name = "none",
 	.reset = reset,
 	.destroy = destroy,
 	.is_authenticated = is_authenticated,