bpo-36582: Make collections.UserString.encode() return bytes, not str (GH-13138)

diff --git a/Misc/ACKS b/Misc/ACKS
index 4f5ebd6..d5064f6 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -512,6 +512,7 @@
 Michael Foord
 Amaury Forgeot d'Arc
 Doug Fort
+Daniel Fortunov
 Evens Fortuné
 Chris Foster
 John Fouhy