language: fix system tests (#1739)
language: fix system tests (#1739)


jgeewax/gcloud-node,callmehiphop/gcloud-node,googleapis/google-cloud-node,jgeewax/gcloud-node,ofrobots/google-cloud-node,ofrobots/google-cloud-node,googleapis/google-cloud-node,GoogleCloudPlatform/gcloud-node,callmehiphop/gcloud-node,googleapis/google-cloud-node,GoogleCloudPlatform/gcloud-node,googleapis/google-cloud-node,GoogleCloudPlatform/gcloud-node,jcking/google-cloud-node,jcking/google-cloud-node,ofrobots/google-cloud-node,jcking/google-cloud-node