(Merge 3.1) Issue #9756: credit the author, Andreas Stührk (Trundle)
diff --git a/Misc/ACKS b/Misc/ACKS
index 450a3a5..3c0e370 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -780,6 +780,7 @@
 Patrick Strawderman
 Dan Stromberg
 Daniel Stutzbach
+Andreas Stührk
 Nathan Sullivan
 Mark Summerfield
 Hisao Suzuki