From de95a3344b4a2ba15bf0db239ce2902b184a42e1 Mon Sep 17 00:00:00 2001
From: h00130372 <huangtianhua@huawei.com>
Date: Mon, 15 Apr 2019 09:47:26 +0800
Subject: [PATCH] Fix older bash failing on unbound array variables

Older bash versions fail when trying to expand array variables
when the array is empty.
---
 hack/local-up-cluster.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hack/local-up-cluster.sh b/hack/local-up-cluster.sh
index 7415a7cef0..47da348582 100755
--- a/hack/local-up-cluster.sh
+++ b/hack/local-up-cluster.sh
@@ -671,7 +671,7 @@ function start_cloud_controller_manager {
     ${CONTROLPLANE_SUDO} "${EXTERNAL_CLOUD_PROVIDER_BINARY:-"${GO_OUT}/hyperkube" cloud-controller-manager}" \
       --v="${LOG_LEVEL}" \
       --vmodule="${LOG_SPEC}" \
-      "${node_cidr_args[@]}" \
+      "${node_cidr_args[@]:-}" \
       --feature-gates="${FEATURE_GATES}" \
       --cloud-provider="${CLOUD_PROVIDER}" \
       --cloud-config="${CLOUD_CONFIG}" \