Add renaming notices to 2.6 dbm module docs.
diff --git a/Doc/library/dbm.rst b/Doc/library/dbm.rst
index 52923e8..8747789 100644
--- a/Doc/library/dbm.rst
+++ b/Doc/library/dbm.rst
@@ -1,4 +1,3 @@
-
:mod:`dbm` --- Simple "database" interface
==========================================
@@ -6,6 +5,11 @@
:platform: Unix
:synopsis: The standard "database" interface, based on ndbm.
+.. note::
+ The :mod:`dbm` module has been renamed to :mod:`dbm.ndbm` in Python 3.0. The
+ :term:`2to3` tool will automatically adapt imports when converting your
+ sources to 3.0.
+
The :mod:`dbm` module provides an interface to the Unix "(n)dbm" library. Dbm
objects behave like mappings (dictionaries), except that keys and values are