Add a line with the actual changes.
diff --git a/Doc/library/pydoc.rst b/Doc/library/pydoc.rst
index 842af3e..14dc58b 100644
--- a/Doc/library/pydoc.rst
+++ b/Doc/library/pydoc.rst
@@ -79,3 +79,4 @@
 Reference Manual pages.
 
 .. versionchanged:: 3.2
+   Added the ``-b`` option, deprecated the ``-g`` option.