Disallow opening files with modes 'aU' or 'wU' as specified by PEP
278. Closes bug 967182.
diff --git a/Misc/NEWS b/Misc/NEWS
index 4d8f3b1..77e059e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
 Core and builtins
 -----------------
 
+- bug #967182: disallow opening files with 'wU' or 'aU' as specified by PEP
+  278.
+
 - patch #1109424: int, long, float, complex, and unicode now check for the
   proper magic slot for type conversions when subclassed.  Previously the
   magic slot was ignored during conversion.  Semantics now match the way