bpo-31170: Update libexpat from 2.2.3 to 2.2.4 (#3315)
* bpo-31170: Update libexpat from 2.2.3 to 2.2.4
Fix copying of partial characters for UTF-8 input (libexpat bug 115):
https://github.com/libexpat/libexpat/issues/115
* Add NEWS entry.
diff --git a/Modules/expat/xmltok_impl.h b/Modules/expat/xmltok_impl.h
index da0ea60..a6420f4 100644
--- a/Modules/expat/xmltok_impl.h
+++ b/Modules/expat/xmltok_impl.h
@@ -1,6 +1,33 @@
/*
-Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
-See the file COPYING for copying permission.
+ __ __ _
+ ___\ \/ /_ __ __ _| |_
+ / _ \\ /| '_ \ / _` | __|
+ | __// \| |_) | (_| | |_
+ \___/_/\_\ .__/ \__,_|\__|
+ |_| XML parser
+
+ Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
+ Copyright (c) 2000-2017 Expat development team
+ Licensed under the MIT license:
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to permit
+ persons to whom the Software is furnished to do so, subject to the
+ following conditions:
+
+ The above copyright notice and this permission notice shall be included
+ in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+ NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
enum {