PrintOpt
PrintOpt('k', "stop server");
PrintOpt('s', "string");
PrintOpt('e', "endpoint");
PrintOpt('m', "maxcalls");
PrintOpt('n', "mincalls");
PrintOpt('f', "flag_wait_op");
PrintOpt('u', "unprotected");
PrintOpt('b', "use security callback");
PrintOpt('c', "output debug info to console");
void PrintOpt(char ch, char* text);