From 5f171f42328bdd573211bb82bdee8f259c4c61ae Mon Sep 17 00:00:00 2001
From: Kamil Kisiel <kamil@kamilkisiel.net>
Date: Mon, 2 Feb 2015 22:33:18 -0800
Subject: Fix broken error message on invalid MAC.

Fixes #13.
---
 securecookie.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/securecookie.go b/securecookie.go
index 6b70268..620c508 100644
--- a/securecookie.go
+++ b/securecookie.go
@@ -196,7 +196,7 @@ func (s *SecureCookie) Decode(name, value string, dst interface{}) error {
 	// 3. Verify MAC. Value is "date|value|mac".
 	parts := bytes.SplitN(b, []byte("|"), 3)
 	if len(parts) != 3 {
-		return errors.New("securecookie: invalid value %v")
+		return ErrMacInvalid
 	}
 	h := hmac.New(s.hashFunc, s.hashKey)
 	b = append([]byte(name+"|"), b[:len(b)-len(parts[2])-1]...)
-- 
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