#17341: Include name in re error message about invalid group name.

Patch by Jason Michalski.
diff --git a/Misc/ACKS b/Misc/ACKS
index 5779332..78f074c 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -674,6 +674,7 @@
 Mike Meyer
 Piotr Meyer
 Steven Miale
+Jason Michalski
 Trent Mick
 Tom Middleton
 Stan Mihai