Issue #27366: Implement PEP 487

- __init_subclass__ called when new subclasses defined
- __set_name__ called when descriptors are part of a
  class definition
diff --git a/Misc/ACKS b/Misc/ACKS
index 1d96fb2..b9af726 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1475,6 +1475,7 @@
 Julian Taylor
 Monty Taylor
 Anatoly Techtonik
+Martin Teichmann
 Gustavo Temple
 Mikhail Terekhov
 Victor Terrón