listen_addr: take first working address from getaddrinfo
listen_addr: take first working address from getaddrinfo

On error try next address.

Later will be checked if we found any succesfull listening
sockets and if not, exit.

kvap/pgbouncer,wurenny/pgbouncer-x2,dbaxa/pgbouncer,dbaxa/pgbouncer,wurenny/pgbouncer-x2,kvap/pgbouncer,dbaxa/pgbouncer,digoal/pgbouncer-x2,jaiminpan/pgbouncer,digoal/pgbouncer-x2,kvap/pgbouncer,jaiminpan/pgbouncer,wurenny/pgbouncer-x2,jaiminpan/pgbouncer,dbaxa/pgbouncer,jaiminpan/pgbouncer,wurenny/pgbouncer-x2,kvap/pgbouncer,digoal/pgbouncer-x2,digoal/pgbouncer-x2