[cloud] Support check_mode for ec2_vpc_subnet_facts (#23111)

* Support check_mode for ec2_vpc_subnet_facts

facts modules support check mode by default

* ec2_vpc_subnet_facts pep8 tidy up

lib/ansible/modules/cloud/amazon/ec2_vpc_subnet_facts.py

@@ -90,19 +90,19 @@ from ansible.module_utils.ec2 import AnsibleAWSError, connect_to_aws, ec2_argume
 
 def get_subnet_info(subnet):
 
-    subnet_info = { 'id': subnet.id,
-                    'availability_zone': subnet.availability_zone,
-                    'available_ip_address_count': subnet.available_ip_address_count,
-                    'cidr_block': subnet.cidr_block,
-                    'default_for_az': subnet.defaultForAz,
-                    'map_public_ip_on_launch': subnet.mapPublicIpOnLaunch,
-                    'state': subnet.state,
-                    'tags': subnet.tags,
-                    'vpc_id': subnet.vpc_id
-                  }
+    subnet_info = {'id': subnet.id,
+                   'availability_zone': subnet.availability_zone,
+                   'available_ip_address_count': subnet.available_ip_address_count,
+                   'cidr_block': subnet.cidr_block,
+                   'default_for_az': subnet.defaultForAz,
+                   'map_public_ip_on_launch': subnet.mapPublicIpOnLaunch,
+                   'state': subnet.state,
+                   'tags': subnet.tags,
+                   'vpc_id': subnet.vpc_id}
 
     return subnet_info
 
+
 def list_ec2_vpc_subnets(connection, module):
 
     filters = module.params.get("filters")
@@ -123,11 +123,12 @@ def main():
     argument_spec = ec2_argument_spec()
     argument_spec.update(
         dict(
-            filters = dict(default=None, type='dict')
+            filters=dict(default=None, type='dict')
         )
     )
 
-    module = AnsibleModule(argument_spec=argument_spec)
+    module = AnsibleModule(argument_spec=argument_spec,
+                           supports_check_mode=True)
 
     if not HAS_BOTO:
         module.fail_json(msg='boto required for this module')

test/sanity/pep8/legacy-files.txt

@@ -183,7 +183,6 @@ lib/ansible/modules/cloud/amazon/ec2_vpc_net.py
 lib/ansible/modules/cloud/amazon/ec2_vpc_net_facts.py
 lib/ansible/modules/cloud/amazon/ec2_vpc_peer.py
 lib/ansible/modules/cloud/amazon/ec2_vpc_subnet.py
-lib/ansible/modules/cloud/amazon/ec2_vpc_subnet_facts.py
 lib/ansible/modules/cloud/amazon/ec2_vpc_vgw.py
 lib/ansible/modules/cloud/amazon/ec2_vpc_vgw_facts.py
 lib/ansible/modules/cloud/amazon/ec2_win_password.py