Add boilerplate and remove wildcard imports for openstack modules (#31461)

* Add boilerplate and remove wildcard imports for openstack modules
* Remove openstack files that are now pep8 compliant from the legacy list

lib/ansible/modules/cloud/openstack/os_stack.py

@@ -3,19 +3,11 @@
 
 # (c) 2016, Mathieu Bultel <mbultel@redhat.com>
 # (c) 2016, Steve Baker <sbaker@redhat.com>
-#
-# This module is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This software is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this software.  If not, see <http://www.gnu.org/licenses/>.
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
 
 ANSIBLE_METADATA = {'metadata_version': '1.1',
                     'status': ['preview'],
@@ -159,14 +151,17 @@ stack:
                         'updated_time': null}"
 '''
 
-from time import sleep
 from distutils.version import StrictVersion
+
 try:
     import shade
     HAS_SHADE = True
 except ImportError:
     HAS_SHADE = False
 
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.openstack import openstack_full_argument_spec, openstack_module_kwargs
+
 
 def _create_stack(module, stack, cloud):
     try:
@@ -271,7 +266,6 @@ def main():
     except shade.OpenStackCloudException as e:
         module.fail_json(msg=str(e))
 
-from ansible.module_utils.basic import *
-from ansible.module_utils.openstack import *
+
 if __name__ == '__main__':
     main()