portlist: collect IPv6 listening sockets on linux.

Browse Source

This is important because some of those v6 sockets are actually
dual-stacked sockets, so this is our only chance of discovering
some services.

Fixes #1443.

Signed-off-by: David Anderson <danderson@tailscale.com>

...

This commit is contained in:

500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f