SF bug #770485: cStringIO does not set closed attr
diff --git a/Misc/NEWS b/Misc/NEWS
index 410391c..1de08e7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -18,6 +18,8 @@
 Extension modules
 -----------------
 
+- cStringIO now supports the f.closed attribute.
+
 - The signal module now exposes SIGRTMIN and SIGRTMAX (if available).
 
 Library