testERP5Web: use two \n between classes as recommended by pep-0008

product/ERP5/bin/genbt5list

-#! /usr/bin/python
+#! /usr/bin/env python
 ##############################################################################
 #
 # Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.

product/ERP5/tests/testERP5Web.py

@@ -47,6 +47,7 @@ class DummyTraversalHook(object):
   def __call__(self, container, request):
     return
 
+
 class WebTraversalHookTestMixin(object):
   """Mixin class to test the WebSiteTraversalHook on both websection and website.
   """
@@ -109,6 +110,7 @@ class TestWebSiteTraversalHook(WebTraversalHookTestMixin, ERP5TypeTestCase):
     from Products.ERP5Type.Document.WebSite import WebSiteTraversalHook
     self.traversal_hook_class = WebSiteTraversalHook
 
+
 class TestWebSectionTraversalHook(WebTraversalHookTestMixin, ERP5TypeTestCase):
   def afterSetUp(self):
     super(TestWebSectionTraversalHook, self).afterSetUp()
@@ -121,7 +123,6 @@ class TestWebSectionTraversalHook(WebTraversalHookTestMixin, ERP5TypeTestCase):
     self.traversal_hook_class = WebSectionTraversalHook
 
 
-
 class TestERP5Web(ERP5TypeTestCase):
   """Test for erp5_web business template.
   """