Removed empty string default setting of EXTRA_DOCKER_ARGS. (#210)
Removed empty string default setting of EXTRA_DOCKER_ARGS. (#210)


janetkuo/marketplace-k8s-app-tools,GoogleCloudPlatform/marketplace-k8s-app-tools,GoogleCloudPlatform/marketplace-k8s-app-tools,janetkuo/marketplace-k8s-app-tools