OPT_6
case OPT_6:
{ "6", OPT_6, '-', "SHA512-based password algorithm" },
case OPT_6:
{ "6", OPT_6, '-', "Use IPv6 only" },
(o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
case OPT_6:
{ "6", OPT_6, '-', "Use IPv6 only" },