bpo-37478: Add missing 'and'. (GH-14631)

(cherry picked from commit a9b40e4) Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

Author: miss-islington

Doc/library/os.rst

@@ -1599,7 +1599,7 @@ features:
  This function can support :ref:`specifying a file descriptor <path_fd>`. The
  descriptor must refer to an opened directory, not an open file.
 
- This function can raise :exc:`OSError` subclasses such as
+ This function can raise :exc:`OSError` and subclasses such as
  :exc:`FileNotFoundError`, :exc:`PermissionError`, and :exc:`NotADirectoryError`.
 
  .. versionadded:: 3.3