Close #12085: Fix an attribute error in subprocess.Popen destructor if the
constructor has failed, e.g. because of an undeclared keyword argument. Patch
written by Oleg Oshmyan.
diff --git a/Misc/ACKS b/Misc/ACKS
index d0e32e1..aa077fc 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -650,6 +650,7 @@
 Jason Orendorff
 Douglas Orr
 Michele Orrù
+Oleg Oshmyan
 Denis S. Otkidach
 Michael Otteneder
 R. M. Oudkerk