Closes #11696: Fix ID generation in msilib.
Patch by Mark Mc Mahon.
diff --git a/Misc/ACKS b/Misc/ACKS
index c2bcde2..cc33061 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -529,6 +529,7 @@
 Greg McFarlane
 Alan McIntyre
 Michael McLay
+Mark Mc Mahon
 Gordon McMillan
 Caolan McNamara
 Andrew McNamara