PC-BSD/trueos 2243bfesbin/ipfw ipfw2.c

Rework how protocol number is tracked in rule. Save it when O_PROTO
opcode will be printed. This should solve the problem, when protocol
name is not printed in `ipfw -N show`.

Reported by:    Claudio Eichenberger <cei at yourshop.com>
MFC after:      1 week
DeltaFile
+6-10sbin/ipfw/ipfw2.c
+6-101 files

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