It was "connecting" to "localhost 30000" successfully, because it was
using UDP. Oops.
This reveals another issue: init_conn() uses the wrong address to
connect to, as we'd already incremented the pointer in try_connect_one().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Also based on pettycoin code.
(With embarrassing bug fixed where it didn't increment the address used,
thus using 100% CPU if that connect failed!)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>