Issue #11896: Save on Close failed despite selecting "Yes" in dialog.
_tkinter.c is returning <class '_tkinter.Tcl_Obj'> sometimes. Don't use
tkinter.messagebox.Message - use the helper functions which convert to str.
diff --git a/Lib/idlelib/NEWS.txt b/Lib/idlelib/NEWS.txt
index d45941a..d4bb009 100644
--- a/Lib/idlelib/NEWS.txt
+++ b/Lib/idlelib/NEWS.txt
@@ -1,7 +1,9 @@
What's New in IDLE 3.1.4?
=========================
-*Release date: 15-May-11*
+*Release date: XX-XXX-11*
+
+- Issue #11896: Save on Close failed despite selecting "Yes" in dialog.
- Issue #1028: Ctrl-space binding to show completions was causing IDLE to exit.
Tk < 8.5 was sending invalid Unicode null; replaced with valid null.