Fixed find-all-devs for debian.

[andry-mai]

On debian stretch, sbcl-1.5.4 find-all-devs now work.

CL-USER> (plokami:find-all-devs)
...
 ("enp3s0" NIL 6
  (((:ADDR :AF_INET6 "0:21f:d0ff:feb1:f831:200::")
    (:NETMASK :AF_INET6 "ffff::"))
   ((:ADDR :AF_INET "192.168.4.155") (:NETMASK :AF_INET "255.255.255.0")
    (:BROADADDR :AF_INET "192.168.4.255"))
   ((:ADDR :AF_LINK "00:1F:D0:B1:F8:31")
    (:BROADADDR :AF_LINK "FF:FF:FF:FF:FF:FF")))))

[atomontage]

I have a lot of updated code for this already written, I just need to find some time to review it again (and compare it with yours) and push it. I’ll pick this up when my schedule clears up a little.