add rl_callback_handler_remove so that readline cleans up

main.cpp

@@ -173,6 +173,7 @@ int main(int argc, char* argv[])
 	readThread.join();
 	close(pollQue);
 	close(sigfd);
+	rl_callback_handler_remove();
 	std::cout<<std::endl;
 	return 0;
 }