fix the socketserver demo code for py3k

#4275 Thanks to Don MacMillen
diff --git a/Misc/ACKS b/Misc/ACKS
index a33b6e9..19a4f8a 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -435,6 +435,7 @@
 Andrew I MacIntyre
 Tim MacKenzie
 Nick Maclaren
+Don MacMillen
 Steve Majewski
 Grzegorz Makarewicz
 Ken Manheimer