Issue #19201: Add support for the 'x' mode to the lzma module.

Patch by Tim Heaney and Vajrasky Kok.
diff --git a/Misc/ACKS b/Misc/ACKS
index e204bc3..880e4f0 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -506,6 +506,7 @@
 Rycharde Hawkes
 Ben Hayden
 Jochen Hayek
+Tim Heaney
 Henrik Heimbuerger
 Christian Heimes
 Thomas Heller
diff --git a/Misc/NEWS b/Misc/NEWS
index a0af8cd..4d514f5 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -54,6 +54,9 @@
 Library
 -------
 
+- Issue #19201: Add "x" mode (exclusive creation) in opening file to lzma
+  module. Patch by Tim Heaney and Vajrasky Kok.
+
 - Fix a reference count leak in _sre.
 
 - Issue #19262: Initial check in of the 'asyncio' package (a.k.a. Tulip,