new_contents: #!/usr/bin/env python
  
  '''
  Copyright (c) 2016 anti-XSS developers
  '''
  
  def formalize(url):
      '''
      Formalize the link (url)
      '''
  
      length = len(url)
      if url[length - 1] == '/':
          return url[:length - 1]
  
      return url
  
subject: Add formalize