fprintf(stderr, " Set debug level (0 - 2, default 0)\n");
fprintf(stderr, " --cokeport\n");
fprintf(stderr, " Coke machine serial port (Default \"/dev/ttyS0\")\n");
fprintf(stderr, " Set debug level (0 - 2, default 0)\n");
fprintf(stderr, " --cokeport\n");
fprintf(stderr, " Coke machine serial port (Default \"/dev/ttyS0\")\n");