-----------
  -stats
-----------

  use:
  ---

    it lists the statistics about the dir, such as:

      01. size
      02. size of files
      03. no of dirs
      04. no of files
      05. no of unread paths
      06. no of total dirs
      07. no of total files
      08. no of total unread paths
      09. creation time
      10. modification time

  usage:
  -----

    dtree  dir_path  -stats
    dtree  dir_path  -st