* Address reviewer's comments

Signed-off-by: Alina Buzachis <[email protected]>

plugins/modules/ec2_vpc_nat_gateway_info.py

@@ -160,14 +160,14 @@
 
 
 @AWSRetry.jittered_backoff(retries=10)
-def _describe_nat_gateways(client, **params):
+def _describe_nat_gateways(client, module, **params):
     try:
         paginator = client.get_paginator('describe_nat_gateways')
         return paginator.paginate(**params).build_full_result()['NatGateways']
     except is_boto3_error_code('InvalidNatGatewayID.NotFound'):
         return list()
     except is_boto3_error_code('NatGatewayMalformed'):  # pylint: disable=duplicate-except
-        return list()
+        module.exit_json(msg="NAT gateway id is malformed.")
 
 
 def get_nat_gateways(client, module):
@@ -178,7 +178,7 @@ def get_nat_gateways(client, module):
     params['NatGatewayIds'] = module.params.get('nat_gateway_ids')
 
     try:
-        result = normalize_boto3_result(_describe_nat_gateways(client, **params))
+        result = normalize_boto3_result(_describe_nat_gateways(client, module, **params))
     except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
         module.fail_json_aws(e, 'Unable to describe NAT gateways.')
 
@@ -196,7 +196,7 @@ def get_nat_gateways(client, module):
 def main():
     argument_spec = dict(
         filters=dict(default={}, type='dict'),
-        nat_gateway_ids=dict(default=[], type='list', elements='str')
+        nat_gateway_ids=dict(default=[], type='list', elements='str'),
     )
 
     module = AnsibleAWSModule(argument_spec=argument_spec,