Issue #9225: Remove the ROT_FOUR and DUP_TOPX opcode, the latter replaced
by the new (and simpler) DUP_TOP_TWO.  Performance isn't changed, but
our bytecode is a bit simplified.  Patch by Demur Rumed.
diff --git a/Misc/ACKS b/Misc/ACKS
index dc0a634..2c24d2f 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -700,6 +700,7 @@
 Clinton Roy
 Paul Rubin
 Sam Ruby
+Demur Rumed
 Audun S. Runde
 Rauli Ruohonen
 Jeff Rush