formatting and minor cosmetic fixes

outputs.tf

@@ -1,27 +1,27 @@
 output "cluster_id" {
   description = "The name/id of the EKS cluster."
-  value       = "${aws_eks_cluster.this.id}"
+  value       = "${aws_eks_cluster.cluster.id}"
 }
 
 # Though documented, not yet supported
 # output "cluster_arn" {
 #   description = "The Amazon Resource Name (ARN) of the cluster."
-#   value       = "${aws_eks_cluster.this.arn}"
+#   value       = "${aws_eks_cluster.cluster.arn}"
 # }
 
 output "cluster_certificate_authority_data" {
   description = "Nested attribute containing certificate-authority-data for your cluster. This is the base64 encoded certificate data required to communicate with your cluster."
-  value       = "${aws_eks_cluster.this.certificate_authority.0.data}"
+  value       = "${aws_eks_cluster.cluster.certificate_authority.0.data}"
 }
 
 output "cluster_endpoint" {
   description = "The endpoint for your EKS Kubernetes API."
-  value       = "${aws_eks_cluster.this.endpoint}"
+  value       = "${aws_eks_cluster.cluster.endpoint}"
 }
 
 output "cluster_version" {
   description = "The Kubernetes server version for the EKS cluster."
-  value       = "${aws_eks_cluster.this.version}"
+  value       = "${aws_eks_cluster.cluster.version}"
 }
 
 output "cluster_security_group_id" {