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.

Doc/lib/libimghdr.tex

@@ -7,7 +7,7 @@ file or byte stream.
 
 The \code{imghdr} module defines the following function:
 
-\renewcommand{\indexsubitem}{(in module imghdr)}
+\setindexsubitem{(in module imghdr)}
 
 \begin{funcdesc}{what}{filename\optional{\, h}}
 Tests the image data contained in the file named by \var{filename},
@@ -54,8 +54,8 @@ the test succeeded, or \code{None} if it failed.
 
 Example:
 
-\bcode\begin{verbatim}
+\begin{verbatim}
 >>> import imghdr
 >>> imghdr.what('/tmp/bass.gif')
 'gif'
-\end{verbatim}\ecode
+\end{verbatim}