auto*.pl bug in IPv6 netstat output

[mbasunov]

netstat -lnp output tcp/udp words for IPv4 listening sockets, but it says udp6/tcp6 for IPv6 sockets.
So, aut.*.pl scripts does not recognizes and does not says listening IPv6 sockets in testing mode.

[chirpy]

This has now been resolved in v5.20