Tidy up modemuncher.c.
Tidy up modemuncher.c.

Remove never-compiled debug code. This code is fairly well tested now.

Fix whitespace and indentation.

Remove camelCase name of modeLookup struct and typedef, which is only
used once, and use an anonymous struct instead.

Rename the only remaining camelCase identifier in the entire file to a
non-camelCase one.

snegovick/luaposix,rrthomas/luaposix,jimmyharris/luaposix,luaposix/luaposix,ardje/luaposix,zevv/luaposix,snegovick/luaposix,ardje/luaposix,zevv/luaposix,rrthomas/luaposix,jimmyharris/luaposix