fix clippy issues

Author: tvpeter

src/handlers.rs

@@ -1008,7 +1008,7 @@ async fn respond(
     };
     if let Some(value) = response {
         let value = serde_json::to_string_pretty(&value).map_err(|e| e.to_string())?;
-        writeln!(std::io::stdout(), "{}", value).map_err(|e| e.to_string())?;
+        writeln!(std::io::stdout(), "{value}").map_err(|e| e.to_string())?;
         std::io::stdout().flush().map_err(|e| e.to_string())?;
         Ok(false)
     } else {

src/main.rs

@@ -28,15 +28,15 @@ async fn main() {
     let cli_opts: CliOpts = CliOpts::parse();
 
     let network = &cli_opts.network;
-    debug!("network: {:?}", network);
+    debug!("network: {network:?}");
     if network == &Network::Bitcoin {
         warn!("This is experimental software and not currently recommended for use on Bitcoin mainnet, proceed with caution.")
     }
 
     match handle_command(cli_opts).await {
-        Ok(result) => println!("{}", result),
+        Ok(result) => println!("{result}"),
         Err(e) => {
-            error!("{}", e);
+            error!("{e}");
             std::process::exit(1);
         }
     }