Fix for #1643874: When calling SysAllocString, create a PyCObject
which will eventually call SysFreeString to free the BSTR resource.
diff --git a/Misc/NEWS b/Misc/NEWS
index ad72b08..3fad862 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -123,6 +123,8 @@
 Library
 -------
 
+- Patch #1643874: memory leak in ctypes fixed.
+
 - Patch #1627441: close sockets properly in urllib2.
 
 - Bug #494589: make ntpath.expandvars behave according to its docstring.