From 24da8a0ed415c019179ca2c4f7496cbdffb7e4d0 Mon Sep 17 00:00:00 2001
From: Christopher Jones <tophj@linux.vnet.ibm.com>
Date: Fri, 12 Jan 2018 11:05:20 -0500
Subject: [PATCH] [ci] use alternate bash comparison

The pattern `echo str | grep -qE pattern` likes to fail on the z CI here for
an unknown reason. Use `grep -qE pattern <<< str` instead.

Signed-off-by: Christopher Jones <tophj@linux.vnet.ibm.com>
---
 contrib/download-frozen-image-v2.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/download-frozen-image-v2.sh b/contrib/download-frozen-image-v2.sh
index 22a4b78273..54b592307f 100755
--- a/contrib/download-frozen-image-v2.sh
+++ b/contrib/download-frozen-image-v2.sh
@@ -63,7 +63,7 @@ fetch_blob() {
 			-D-
 	)"
 	curlHeaders="$(echo "$curlHeaders" | tr -d '\r')"
-	if echo "$curlHeaders" | grep -qE "^HTTP/[0-9].[0-9] 3"; then
+	if grep -qE "^HTTP/[0-9].[0-9] 3" <<<"$curlHeaders"; then
 		rm -f "$targetFile"
 
 		local blobRedirect="$(echo "$curlHeaders" | awk -F ': ' 'tolower($1) == "location" { print $2; exit }')"