change the gpl header to single line version and order of imports

lib/ansible/modules/system/interfaces_file.py

@@ -2,26 +2,12 @@
 # -*- coding: utf-8 -*-
 #
 # (c) 2016, Roman Belyakovsky <ihryamzik () gmail.com>
-#
-# 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/>.
-#
+# 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': '1.0',
                     'status': ['stableinterface'],
                     'supported_by': 'community'}
@@ -160,8 +146,9 @@ EXAMPLES = '''
 '''
 
 import os
-import tempfile
 import re
+import tempfile
+
 from ansible.module_utils.basic import AnsibleModule