Issue #13894: Skip test_threading.CRLockTests if _CRLock isn't available. Patch
by Matt Joiner.
diff --git a/Misc/ACKS b/Misc/ACKS
index c888a8c..8117d80 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -453,6 +453,7 @@
 Fredrik Johansson
 Gregory K. Johnson
 Simon Johnston
+Matt Joiner
 Thomas Jollans
 Nicolas Joly
 Evan Jones