old_contents: from django.conf.urls import patterns
  from django.conf.urls import url
  
  from .views import redirect
  
  
  urlpatterns = patterns('',
      url(r'^(?P<key>[a-zA-Z0-9]+)$', redirect, name='deflect-redirect'),
  )
  
new_contents: from django.conf.urls import patterns
  from django.conf.urls import url
  
  from .views import redirect
  
  
  urlpatterns = patterns('',
      url(r'^(?P<key>[a-zA-Z0-9-]+)$', redirect, name='deflect-redirect'),
  )
  
subject: Allow dashes in URL path regexp