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_server_volume.py

@@ -2,19 +2,11 @@
 #coding: utf-8 -*-
 
 # Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
-#
-# 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'],
@@ -80,6 +72,9 @@ try:
 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 _system_state_change(state, device):
     """Check if system state would change."""
@@ -155,8 +150,6 @@ def main():
     except (shade.OpenStackCloudException, shade.OpenStackCloudTimeout) as e:
         module.fail_json(msg=str(e))
 
-# this is magic, see lib/ansible/module_utils/common.py
-from ansible.module_utils.basic import *
-from ansible.module_utils.openstack import *
+
 if __name__ == '__main__':
     main()