Document the rest of zlib.compressobj()'s arguments.

Original patch by Jim Jewett; see issue 14684.
diff --git a/Misc/ACKS b/Misc/ACKS
index a933f73..c1c3cbd 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -503,6 +503,7 @@
 Drew Jenkins
 Flemming Kjær Jensen
 MunSic Jeong
+Jim Jewett
 Orjan Johansen
 Fredrik Johansson
 Gregory K. Johnson