old_contents: # -*- coding: utf-8 -*-
  # vim: set ts=4 sw=4 : */
  
  from django.contrib import admin
  from models import TrustedRoot, Association, Nonce
  
  admin.site.register(TrustedRoot)
  admin.site.register(Association)
  admin.site.register(Nonce)
  
new_contents: # -*- coding: utf-8 -*-
  
  from django.contrib import admin
  from models import TrustedRoot, Association, Nonce
  
  admin.site.register(TrustedRoot)
  admin.site.register(Association)
  admin.site.register(Nonce)
  
subject: Remove vim instruction in prologue.