BFD: Fix format_ip46_address() parameter ordering.

Change-Id: I2b50e3fc06b4e905395d4706083f12ebc76826ce
Signed-off-by: Jon Loeliger <jdl@netgate.com>
diff --git a/src/vnet/bfd/bfd_udp.c b/src/vnet/bfd/bfd_udp.c
index 5464ce9..fa696aa 100644
--- a/src/vnet/bfd/bfd_udp.c
+++ b/src/vnet/bfd/bfd_udp.c
@@ -589,7 +589,7 @@
     {
       vlib_log_err (bum->log_class,
 		    "local address %U not found on interface with index %u",
-		    format_ip46_address, IP46_TYPE_ANY, local_addr,
+		    format_ip46_address, local_addr, IP46_TYPE_ANY,
 		    sw_if_index);
       return VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
     }