Reset pointers before logging is shutdown to prevent destructors logging to unitialized logger

    int ret = example_main(nonblocking_connection, blocking_connection, argc, argv);

    // Manually reset connections before shutting down logging to avoid logging to

    // an uninitialized logger from a destructor

    nonblocking_connection.reset();

    blocking_connection.reset();

    google::protobuf::ShutdownProtobufLibrary();

    google::ShutdownGoogleLogging();

    google::ShutDownCommandLineFlags();