#11515: fix several typos. Patch by Piotr Kasprzyk.
diff --git a/Misc/ACKS b/Misc/ACKS
index 5a7b8a6..a1f620f 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -416,6 +416,7 @@
 Tamito Kajiyama
 Peter van Kampen
 Jacob Kaplan-Moss
+Piotr Kasprzyk
 Lou Kates
 Hiroaki Kawai
 Sebastien Keim