Issue #28387: Fixed possible crash in _io.TextIOWrapper deallocator when
the garbage collector is invoked in other thread.
Based on patch by Sebastian Cufre.
diff --git a/Misc/ACKS b/Misc/ACKS
index 46d6adf..fb3f299 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -315,6 +315,7 @@
 Felipe Cruz
 Drew Csillag
 Joaquin Cuenca Abela
+Sebastian Cufre
 John Cugini
 Tom Culliton
 Raúl Cumplido