rustfmt: add trailing commas in match arms, set fn call to block stle (#85)

tests/codec_read.rs

@@ -124,6 +124,8 @@ fn update_max_frame_len_at_rest() {
     codec.set_max_recv_frame_size(2);
 
     assert_eq!(codec.max_recv_frame_size(), 2);
-    assert_eq!(codec.poll().unwrap_err().description(),
-               "frame size too big");
+    assert_eq!(
+        codec.poll().unwrap_err().description(),
+        "frame size too big"
+    );
 }