+ std::clog << o("-e") << "exit on close reception\n";
+ std::clog << oo("-i", "value")
+ << "maximum number of iterations, 0 for infinity ("
+ << opt::maxiter << ")\n";
+ std::clog << oo("-l", "value")
+ << "print current load every \"value\" iterations, 0 to disable ("
+ << opt::log_rate << ")\n";