checkin of myformat.sty.
Change "\renewcommand{\indexsubitem}{(...)}" to "\setindexsubitem{(...)}"
everywhere.
Some other minor nits that I happened to come across.
Remove spurious underscore following book title. Added specific reference to
a Win32 networking book.
Changed \indexsubitem from (in module SocketServer) to (SocketServer protocol),
since it's talking about a protocol supported by a collection of classes.
