rem: printf("Syntax:\n%s <domain> <option> <value>\n", ProgName);
add: printf("Syntax:\n%s [OPTIONS] <domain> <option> <value>\n", ProgName); puts(""); puts("  --help		display this help message"); puts("  --version		output version information and exit");
context: void help(){    printf("Syntax:\n%s <domain> <option> <value>\n", ProgName);    exit(1);}