From 201f6887fd5da9f8597ce2244adb03e1aaaa460a Mon Sep 17 00:00:00 2001
From: KAMADA Ken'ichi <kamada@nanohz.org>
Date: Sat, 28 Oct 2017 00:14:41 +0900
Subject: [PATCH] Remove an unused mut.

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

diff --git a/src/reader.rs b/src/reader.rs
index 8be1da4..af399e8 100644
--- a/src/reader.rs
+++ b/src/reader.rs
@@ -64,7 +64,7 @@ pub struct Reader {
 impl Reader {
     /// Reads a JPEG or TIFF image and parses the Exif attributes in it.
     /// If an error occurred, `exif::Error` is returned.
-    pub fn new<R>(mut reader: &mut R)
+    pub fn new<R>(reader: &mut R)
                   -> Result<Reader, Error> where R: io::BufRead {
         let mut buf = Vec::new();
         try!(reader.by_ref().take(4).read_to_end(&mut buf));