[Patch #1514544 by David Watson] use fsync() to ensure data is really on disk
diff --git a/Misc/NEWS b/Misc/NEWS
index 8e258a4..d91e64d 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -137,8 +137,12 @@
weren't passing the message factory on to newly created Maildir/MH
objects.
-- Bug #1575506: Single-file mailboxes didn't re-lock properly in
- their flush() method.
+- Bug #1575506: mailbox.py: Single-file mailboxes didn't re-lock
+ properly in their flush() method.
+
+- Patch #1514544: mailbox.py: Try to ensure that messages/indexes have
+ been physically written to disk after calling .flush() or
+ .close(). (Patch by David Watson.)
- Bug #1576241: fix functools.wraps() to work on built-in functions.