Add note about #7113 and add Łukasz Langa to ACKS
diff --git a/Misc/ACKS b/Misc/ACKS
index a3dc75b..adbf9c1 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -449,6 +449,7 @@
 Cameron Laird
 Torsten Landschoff
 Tino Lange
+Łukasz Langa
 Andrew Langmead
 Detlef Lannert
 Soren Larsen