reverted distutils doc to its 3.1 state
diff --git a/Doc/distutils/extending.rst b/Doc/distutils/extending.rst
index 5a70d03..972ff02 100644
--- a/Doc/distutils/extending.rst
+++ b/Doc/distutils/extending.rst
@@ -15,8 +15,8 @@
should be copied into packages in addition to :file:`.py` files as a
convenience.
-Most distutils command implementations are subclasses of the
-:class:`distutils.cmd.Command` class. New commands may directly inherit from
+Most distutils command implementations are subclasses of the :class:`Command`
+class from :mod:`distutils.cmd`. New commands may directly inherit from
:class:`Command`, while replacements often derive from :class:`Command`
indirectly, directly subclassing the command they are replacing. Commands are
required to derive from :class:`Command`.