Issue #11714: Use 'with' statements to assure a Semaphore releases a
condition variable.  Original patch by Thomas Rachel.
diff --git a/Misc/ACKS b/Misc/ACKS
index e9ec9c8..8a316a3 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -810,6 +810,7 @@
 Eduardo Pérez
 Brian Quinlan
 Anders Qvist
+Thomas Rachel
 Burton Radons
 Jeff Ramnani
 Brodie Rao