Remove all \bcode / \ecode cruft; this is no longer needed.  See previous
checkin of myformat.sty.

Change "\renewcommand{\indexsubitem}{(...)}" to "\setindexsubitem{(...)}"
everywhere.

Some other minor nits that I happened to come across.
diff --git a/Doc/lib/libanydbm.tex b/Doc/lib/libanydbm.tex
index b55b671..722d395 100644
--- a/Doc/lib/libanydbm.tex
+++ b/Doc/lib/libanydbm.tex
@@ -9,7 +9,7 @@
 
 % not the best solution, but it's what you get for documenting both
 % at the same time.
-\renewcommand{\indexsubitem}{(in modules anydbm, dumbdbm)}
+\setindexsubitem{(in modules anydbm, dumbdbm)}
 
 \begin{funcdesc}{open}{filename\optional{\, flag\, mode}}
 Open the database file \var{filename} and return a corresponding object.