* drivers/net/tcpip/datalink/loopback.c: Reformat.
* drivers/net/tcpip/network/neighbor.c: Ditto.
* drivers/net/tcpip/tcpip/info.c: Ditto.
* drivers/net/tcpip/transport/datagram/datagram.c: Cleanup.
If there is an out-of-resources situation, don't transmit the
datagram out of order.