From cb029f4c1f58850787981eefaf9d9bf547c1a722 Mon Sep 17 00:00:00 2001
From: Burcu Dogan <jbd@google.com>
Date: Thu, 4 Sep 2014 13:33:06 -0700
Subject: [PATCH] Fix error message prefix.

---
 oauth2.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/oauth2.go b/oauth2.go
index a98a0a6..dd3a7f8 100644
--- a/oauth2.go
+++ b/oauth2.go
@@ -172,7 +172,7 @@ func (c *Config) NewTransportWithCode(code string) (*Transport, error) {
 // contain a refresh token, it returns an error.
 func (c *Config) FetchToken(existing *Token) (*Token, error) {
 	if existing == nil || existing.RefreshToken == "" {
-		return nil, errors.New("auth2: cannot fetch access token without refresh token")
+		return nil, errors.New("oauth2: cannot fetch access token without refresh token")
 	}
 	return c.retrieveToken(url.Values{
 		"grant_type":    {"refresh_token"},