old_contents: # -*- coding: utf-8 -*-
  # Example authenticator.
  # Class has to have the same name as file (case sensitive) and implement authenticate(self, username, password) method.
  
  class stub:
      def authenticate(self, username, password):
          return true
  
new_contents: # -*- coding: utf-8 -*-
  # Example authenticator.
  # Class has to have the same name as file (case sensitive) and implement authenticate(self, username, password) method.
  
  
  class stub:
      def authenticate(self, username, password):
          return True
  
subject: fix intendation + case-sensitive variables