Fixed #22218 -- Deprecated django.conf.urls.patterns.

Thanks Carl Meyer for the suggestion and Alex Gaynor and Carl for reviews.

tests/handlers/urls.py

@@ -1,13 +1,13 @@
 from __future__ import unicode_literals
 
-from django.conf.urls import patterns, url
+from django.conf.urls import url
 
 from . import views
 
-urlpatterns = patterns('',
+urlpatterns = [
     url(r'^regular/$', views.regular),
     url(r'^streaming/$', views.streaming),
     url(r'^in_transaction/$', views.in_transaction),
     url(r'^not_in_transaction/$', views.not_in_transaction),
     url(r'^suspicious/$', views.suspicious),
-)
+]