improve dis test coverage (closes #11559)

Thanks Matias Bordese. (a few modifications of my own)
diff --git a/Misc/ACKS b/Misc/ACKS
index 453f86a..d0b8951 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -100,6 +100,7 @@
 Forest Bond
 Gawain Bolton
 Gregory Bond
+Matias Bordese
 Jurjen Bos
 Peter Bosch
 Eric Bouck