old_contents: #!/usr/bin/env python
  from migrate.versioning.shell import main
  if __name__ == '__main__':
    main(debug='False', repository='.')
  
new_contents: #!/usr/bin/env python
  from migrate.versioning.shell import main
  if __name__ == '__main__':
      main(debug='False', repository='.')
  
subject: fix indentation