From 7e444a453b18504adcaa106ff4ce358f9e8f7450 Mon Sep 17 00:00:00 2001
From: Andrew Lytvynov <awly@google.com>
Date: Thu, 31 May 2018 16:04:19 -0700
Subject: [PATCH] Quote shell variable expansion

---
 cluster/gce/gci/configure.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cluster/gce/gci/configure.sh b/cluster/gce/gci/configure.sh
index d8bd2baebd1..6ef58a87610 100644
--- a/cluster/gce/gci/configure.sh
+++ b/cluster/gce/gci/configure.sh
@@ -265,7 +265,7 @@ EOF
 }
 
 function install-exec-auth-plugin {
-  if [[ ! ${EXEC_AUTH_PLUGIN_URL:-} ]]; then
+  if [[ ! "${EXEC_AUTH_PLUGIN_URL:-}" ]]; then
       return
   fi
   local -r plugin_url="${EXEC_AUTH_PLUGIN_URL}"