Merge 3.5 (ctypes)

diff --cc Misc/NEWS
index 21aee96bb190f32dbd15710d274ebce3e9f73f4e,7554fcc2d70f1574c7d29f37bf1b664e17c37798..ba287d4873dc081d3837e279e90eac34ab3475f5
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -13,8 -13,9 +13,11 @@@ Core and Builtin
  Library
  -------
  
+ - Issue #23319: Fix ctypes.BigEndianStructure, swap correctly bytes. Patch
+   written by Matthieu Gautier.
+ 
 +- Issue #19450: Update Windows and OS X installer builds to use SQLite 3.8.11.
 +
  - Issue #23254: Document how to close the TCPServer listening socket.
    Patch from Martin Panter.