update timing

src/main.rs

@@ -2,7 +2,7 @@ use std::sync::{Arc, Mutex};
 use std::sync::mpsc::Sender;
 use std::thread;
 use std::thread::JoinHandle;
-use std::time::{Duration};
+use std::time::Duration;
 use clap::Parser;
 use log::LevelFilter;
 use sdl2::audio::{AudioQueue, AudioSpecDesired};