Noissue - Adapt best practices for trailing commas (sitescripts)

sitescripts/send_installation_link/web/send_installation_link.py

 # This file is part of the Adblock Plus web scripts,
 # Copyright (C) 2006-present eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus 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 Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
 
 from sitescripts.utils import get_config, sendMail, encode_email_address
 from sitescripts.web import url_handler, form_handler, send_simple_response
 
 
 @url_handler('/sendInstallationLink')
 @form_handler
 def send_installation_link(environ, start_response, data):
     email = data.get('email', '').strip()
     try:
         email = encode_email_address(email)
     except ValueError:
         return send_simple_response(
             start_response, 400,
-            'Please enter a valid email address.'
+            'Please enter a valid email address.',
         )
 
     config = get_config()
     template_path = config.get('send_installation_link', 'email_template')
     sendMail(template_path, {'recipient': email})
 
     return send_simple_response(
         start_response, 200,
         'The app is on the way! '
-        'Please check your email on your smartphone or tablet.'
+        'Please check your email on your smartphone or tablet.',
     )