Issue #18912: Fix indentation in docstring

Contributed by Jeroen Van Goey
diff --git a/Misc/ACKS b/Misc/ACKS
index a821cb9..e7c98a9 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -445,6 +445,7 @@
 Matt Giuca
 Wim Glenn
 Michael Goderbauer
+Jeroen Van Goey
 Christoph Gohlke
 Tim Golden
 Guilherme Gonçalves