sldns_wire2str_edns_n3u_print
w += sldns_wire2str_edns_n3u_print(s, sl, optdata, optlen);
int sldns_wire2str_edns_n3u_print(char** str, size_t* str_len,
w += sldns_wire2str_edns_n3u_print(s, sl, optdata, optlen);
int sldns_wire2str_edns_n3u_print(char** str, size_t* str_len,