lint: Fixing docs and linting errors

docs/upgrading_to_v2.0.md

@@ -7,7 +7,7 @@ Because v2.x changed how the subnet resource is iterated on, resources in Terraf
 
 ## Migration Instructions
 
--   Upgrade to the new version of this module.  
+-   Upgrade to the new version of this module.
 
 if you run `terraform plan` at this point. Terraform will inform you that it will attempt to delete and recreate your existing subnets. This is almost certainly not the behavior you want. For example:
 

scripts/migrate.sh

@@ -1,13 +1,26 @@
 #!/usr/bin/env bash
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 # shellcheck shell=bash
 # Output Terraform Commands to migrate to new subnet config
 set -e
 set -o pipefail
 
 if [[ "$MODULE_NAME" ]]; then
-  NAME=$(terraform state list | grep ${MODULE_NAME}.google_compute_network.network  | sed 's/.google_compute_network.network//')
-  for x in $(terraform state list | grep ${NAME}.google_compute_subnetwork.subnetwork); do
-    ID=$(terraform state show $x | grep id | grep -v ip_cidr_range | awk '{ print $3 }'| tr -d '"')
+  NAME=$(terraform state list | grep "${MODULE_NAME}".google_compute_network.network  | sed 's/.google_compute_network.network//')
+  for x in $(terraform state list | grep "${NAME}".google_compute_subnetwork.subnetwork); do
+    ID=$(terraform state show "$x" | grep id | grep -v ip_cidr_range | awk '{ print $3 }'| tr -d '"')
     echo "terraform state mv $x ${NAME}.google_compute_subnetwork.subnetwork[\\\"${ID}\\\"]"
   done
 else