char* tmp = strrchr(argv[0], '/');
opt::program_name = (tmp ? tmp + 1 : argv[0]);
char* tmp = strrchr(argv[0], '/');
opt::program_name = (tmp ? tmp + 1 : argv[0]);
std::clog << o("-V") << "print version and exit\n";
std::clog << o("-b") << "activate bookkeeping\n";
std::clog << oo("-c", "[fn,...]f0")
std::clog << o("-V") << "print version and exit\n";
std::clog << o("-b") << "activate bookkeeping\n";
std::clog << oo("-c", "[fn,...]f0")