Issue 1781. Now ConfigParser.add_section does not let you add a
DEFAULT section any more, because it duplicated sections with
the rest of the machinery. Thanks Tim Lesher and Manuel Kaufmann.
diff --git a/Misc/NEWS b/Misc/NEWS
index a33bf71..89f4c49 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -434,6 +434,9 @@
 Library
 -------
 
+- Issue 1781: ConfigParser now does not let you add the "default" section
+  (ignore-case)
+
 - Removed uses of dict.has_key() from distutils, and uses of
   callable() from copy_reg.py, so the interpreter now starts up
   without warnings when '-3' is given.  More work like this needs to