fixed dd_test display regression

Need to call to_string() explicity for custom type now.

Author: tao-guo

README.md

@@ -54,8 +54,9 @@ let now = Instant::now();
     .unwrap_or_else(|_| cmd_die!("thread $i failed"));
     cmd_info!("thread $i bandwidth: $bandwidth");
 });
-let total_bandwidth =
-    Byte::from_bytes((DATA_SIZE / now.elapsed().as_secs()) as u128).get_appropriate_unit(true);
+let total_bandwidth = Byte::from_bytes((DATA_SIZE / now.elapsed().as_secs()) as u128)
+    .get_appropriate_unit(true)
+    .to_string();
 cmd_info!("Total bandwidth: ${total_bandwidth}/s");
 ```
 

examples/dd_test.rs

@@ -57,8 +57,9 @@ fn main() -> CmdResult {
         .unwrap_or_else(|_| cmd_die!("thread $i failed"));
         cmd_info!("thread $i bandwidth: $bandwidth");
     });
-    let total_bandwidth =
-        Byte::from_bytes((DATA_SIZE / now.elapsed().as_secs()) as u128).get_appropriate_unit(true);
+    let total_bandwidth = Byte::from_bytes((DATA_SIZE / now.elapsed().as_secs()) as u128)
+        .get_appropriate_unit(true)
+        .to_string();
     cmd_info!("Total bandwidth: ${total_bandwidth}/s");
 
     Ok(())

src/lib.rs

@@ -60,8 +60,9 @@
 //!     .unwrap_or_else(|_| cmd_die!("thread $i failed"));
 //!     cmd_info!("thread $i bandwidth: $bandwidth");
 //! });
-//! let total_bandwidth =
-//!     Byte::from_bytes((DATA_SIZE / now.elapsed().as_secs()) as u128).get_appropriate_unit(true);
+//! let total_bandwidth = Byte::from_bytes((DATA_SIZE / now.elapsed().as_secs()) as u128)
+//!     .get_appropriate_unit(true)
+//!     .to_string();
 //! cmd_info!("Total bandwidth: ${total_bandwidth}/s");
 //! # Ok::<(), std::io::Error>(())
 //! ```