From edc60164ea952c9a63550ee8c8622b49f3bf39c4 Mon Sep 17 00:00:00 2001
From: liangxia <lxia@redhat.com>
Date: Mon, 15 Dec 2014 03:34:52 +0000
Subject: suppress error unbound variable

---
 cluster.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cluster.sh b/cluster.sh
index 73c87eb95..afb9826ff 100755
--- a/cluster.sh
+++ b/cluster.sh
@@ -4,7 +4,7 @@ MINIONS=3
 MASTERS=1
 
 # If the environment variable OO_PROVDER is defined, it used for the provider
-PROVIDER=$OO_PROVIDER
+PROVIDER=${OO_PROVIDER:-''}
 # Otherwise, default is gce (Google Compute Engine)
 if [ "x$PROVIDER" == "x" ];then
    PROVIDER=gce
-- 
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