add: "  -w, --wait=SECS            timeout for connects and final net reads\n"
context: void netcat_printhelp(char *argv0){  printf("GNU netcat %s, a rewrite of the famous networking tool.\n", VERSION);  printf("Basic usages:\n");  printf("connect to somewhere:  %s [options] hostname port [port] ...\n", argv0);  printf("listen for inbound:    %s -l -p port [options] [hostname] [port]\n", argv0);  printf("\nMandatory arguments to long options are mandatory for short options too.\n");  printf("Options:\n""  -g, --gateway=LIST         source-routing hop point[s], up to 8\n""  -G, --pointer=NUM          source-routing pointer: 4, 8, 12, ...\n""  -h, --help                 display this help and exit\n""  -i, --interval=SECS        delay interval for lines sent, ports scanned\n""  -l, --listen               listen mode, for inbound connects\n""  -n, --dont-resolve         numeric-only IP addresses, no DNS\n""  -o, --output=FILE          output hexdump traffic to FILE (implies -x)\n""  -p, --local-port=NUM       local port number\n""  -r, --randomize            randomize local and remote ports\n""  -t, --telnet               answer using TELNET negotiation\n""  -u, --udp                  UDP mode\n""  -v, --verbose              verbose (use twice to be more verbose)\n""  -V, --version              output version information and exit\n""  -x, --hexdump              hexdump incoming and outgoing traffic\n""  -z, --zero                 zero-I/O mode (used for scanning)\n\n");}