Fix-up docs for the copyreg module renaming.
diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst
index f197261..eefa4d3 100644
--- a/Doc/library/pickle.rst
+++ b/Doc/library/pickle.rst
@@ -535,7 +535,7 @@
and calls :meth:`__reduce__`.
An alternative to implementing a :meth:`__reduce__` method on the object to be
-pickled, is to register the callable with the :mod:`copy_reg` module. This
+pickled, is to register the callable with the :mod:`copyreg` module. This
module provides a way for programs to register "reduction functions" and
constructors for user-defined types. Reduction functions have the same
semantics and interface as the :meth:`__reduce__` method described above, except
@@ -786,7 +786,7 @@
.. seealso::
- Module :mod:`copy_reg`
+ Module :mod:`copyreg`
Pickle interface constructor registration for extension types.
Module :mod:`shelve`