bpo-28603: Fix formatting tracebacks for unhashable exceptions (#4014)

diff --git a/Misc/ACKS b/Misc/ACKS
index 8b9f62e..f1130dc 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -147,6 +147,7 @@
 Philippe Biondi
 Michael Birtwell
 Stuart Bishop
+Zane Bitter
 Roy Bixler
 Daniel Black
 Jonathan Black