fix socket_address output stream operator
fix socket_address output stream operator

Print port number in a host byte order.

Message-Id: <c754133850272a029342b2256c321d8bf29e8f8d@scylladb.com>

scylladb/seastar,dreamsxin/seastar,avikivity/seastar,syuu1228/seastar,avikivity/seastar,syuu1228/seastar,cloudius-systems/seastar,cloudius-systems/seastar,dreamsxin/seastar,scylladb/seastar,scylladb/seastar,avikivity/seastar,cloudius-systems/seastar,dreamsxin/seastar,syuu1228/seastar