Make doctest news more accurate.
diff --git a/Misc/NEWS b/Misc/NEWS
index 3c692f2..fce7676 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -106,8 +106,8 @@
 Library
 -------
 
-- The optional ``is_private`` argument to ``doctest.testmod()``, deprecated
-  in 2.4, was removed.
+- The optional ``isprivate`` argument to ``doctest.testmod()``, and the
+  ``doctest.is_private()`` function, both deprecated in 2.4, were removed.
 
 - Patch #1359618: Speed up charmap encoder by using a trie structure
   for lookup.