Bug #1337990: clarified that `doctest` does not support examples
requiring both expected output and an exception.

I'll backport to 2.4 next.
diff --git a/Misc/NEWS b/Misc/NEWS
index 6f3880e..8788c58 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -171,6 +171,8 @@
 Documentation
 -------------
 
+- Bug #1337990: clarified that ``doctest`` does not support examples
+  requiring both expected output and an exception.
 
 
 What's New in Python 2.5 alpha 1?