remove wildcards and add boilerplate

* cloud/centurylink
* source_control
* cloud/google
* notification
* cloud/rackspace
* cloud/vmware

lib/ansible/modules/notification/mattermost.py

@@ -7,21 +7,12 @@
 #    # (c) 2016, René Moser <mail@renemoser.net>
 #    # (c) 2015, Stefan Berggren <nsg@nsg.cc>
 #    # (c) 2014, Ramon de la Fuente <ramon@delafuente.nl>)
+#
+# 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
 
-# This file is part of Ansible
-#
-# Ansible 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.
-#
-# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.
 
 ANSIBLE_METADATA = {'metadata_version': '1.0',
                     'status': ['preview'],
@@ -103,6 +94,7 @@ webhook_url:
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.urls import fetch_url
 
+
 def main():
     module = AnsibleModule(
         supports_check_mode=True,