From 783a1ab87a97bbf1d1817efccfa1c8c4c713b9f0 Mon Sep 17 00:00:00 2001
From: LiuJoyceC <liujoycec@gmail.com>
Date: Thu, 1 Sep 2016 14:47:49 -0700
Subject: [PATCH] Restricts retrying for 400 error codes to just 429

---
 lib/util.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/util.js b/lib/util.js
index ce7ecbbbf6..0324e83170 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -841,7 +841,7 @@ var util = {
           } else {
             var retryAfter = parseInt(httpResponse.headers['retry-after']) * 1000 || 0;
             var err = util.error(new Error(),
-              { retryable: !!(statusCode >= 500 || (statusCode >= 400 && retryAfter)) }
+              { retryable: statusCode >= 500 || statusCode === 429 }
             );
             if (retryAfter && err.retryable) err.retryAfter = retryAfter;
             errCallback(err);