From 1dd769db40e0a1a07e92c4666e34d9001ac85568 Mon Sep 17 00:00:00 2001
From: Mohd Tarmizi <mohtar@users.noreply.github.com>
Date: Sun, 22 Apr 2018 13:12:35 +0800
Subject: [PATCH] Remove unnecessary mut

---
 src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 161d957..ec9ade8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -130,7 +130,7 @@ fn read_pairs<R: Read>(r: &mut R) -> io::Result<Vec<(String, String)>> {
     }
 }
 
-fn write_len<W: Write>(mut w: &mut W, n: u32) -> io::Result<()> {
+fn write_len<W: Write>(w: &mut W, n: u32) -> io::Result<()> {
     if n < 0x80 {
         try!(w.write_all(&[n as u8]));
     } else {