eine kleine reminder

[Eddie Kohler]

Hey guys, If you modify packet data -- change something in the IP header,
say, or the data -- you should always call Packet::uniqueify() first.

WRONG:
	memcpy(p->data(), "xxx", 3);

RIGHT:
	p = p->uniqueify();
	memcpy(p->data(), "xxx", 3);

You do NOT need to call Packet::uniqueify() if all you are changing is
stuff in the packet header -- annotations, or calling Packet::pull().

lov,e
ed