#28407 Improve test coverage of make_msgid.

Patch by Dillon Brock.
diff --git a/Misc/ACKS b/Misc/ACKS
index 08d06e7..a9cd72e 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -187,6 +187,7 @@
 Anthony Briggs
 Keith Briggs
 Tobias Brink
+Dillon Brock
 Richard Brodie
 Michael Broghton
 Ammar Brohi