} else if (arg[0] == '-' && arg[1] == 0) {
arg= argv_p ? *++(*argv_p) : value;
if (!arg) usageerr("option `-' must be followed by a domain");
} else if (arg[0] == '-' && arg[1] == 0) {
arg= argv_p ? *++(*argv_p) : value;
if (!arg) usageerr("option `-' must be followed by a domain");