old_contents: #!/usr/bin/env python3
  
  from renamer.__main__ import main
  
  main()
  
new_contents: #!/usr/bin/env python3
  
  #   Copyright (c) 2015, Carlos Millett
  #   All rights reserved.
  
  from renamer.__main__ import main
  
  main()
  
subject: add missing copyright info to file