dummynet loses ports mask bits

[Julian Elischer]

In the following example it appears that the mask bits for the port 
number are lost.
before I raise a bug.. is there anyone who can see that I am doing 
anything wrong?

I'm not sure what the q131053 stuff is about either, but..

------------------------------------------
FreeBSD fb10-cc03.kumo.com 10.3-RELEASE-p16 : Wed Feb 22 14:40:53 UTC 
2017  amd64

fb10-cc03# ipfw pipe 11 config mask dst-ip 0x000000ff/0x0fff bw 200Kbit/s

fb10-cc03# ipfw pipe show
00011: 200.000 Kbit/s    0 ms burst 0
q131083  50 sl. 0 flows (1 buckets) sched 65547 weight 0 lmax 0 pri 0 
droptail
  sched 65547 type FIFO flags 0x1 64 buckets 0 active
     mask:  0x00 0x00000000/0x0000 -> 0x000000ff/0x0000