drk: removed brackets from transfer print

src/bin/drk.rs

@@ -265,7 +265,11 @@ async fn start(config: &DrkConfig, options: ArgMatches<'_>) -> Result<()> {
 
         client.transfer(&token_sym, &address, amount).await?;
 
-        println!("{:?} {:?} transferred successfully", amount, token_sym);
+        println!(
+            "{:?} {:?} transferred successfully",
+            amount.to_string(),
+            token_sym.to_string()
+        );
 
         return Ok(());
     }