Add missing return when configuring VXLAN port
Add missing return when configuring VXLAN port

Don't log "success" message if configuring the port failed

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

docker/swarmkit,docker/swarmkit