delete log space

src/main.rs

@@ -71,7 +71,7 @@ fn main() {
         .cmd("help", "Print help information")
         .cmd("version", "Print version information")
         .opt("-c", "Specify a config file")
-        .opt("-w", "Check the interval of the configuration file");
+        .opt("-w", "Check the interval of the configuration file (ms)");
 
     let config_path = match app.value("-c") {
         Some(values) => {
@@ -289,7 +289,7 @@ async fn watch_config(p: PathBuf, t: u64) {
 async fn run_server(addr: SocketAddr) {
     let socket = match UdpSocket::bind(&addr).await {
         Ok(socket) => {
-            println!("Start listening to '{}'", addr);
+            info!("Start listening to '{}'", addr);
             socket
         }
         Err(err) => exit!("Binding '{}' failed\n{:?}", addr, err),