* locale/programs/ld-collate.c (read_directions): Fix a few messages.
(collate_finish): Test that position is used in all sections for
a level or in none.
* string/strxfrm.c: Optimize a bit. We don't need the highest bit
of the index returned by findidx.
* string/strcoll.c: Complete rewrite for new collate implementation.
* wcsmbs/wcscoll.c: Don't use strcoll.c, implement dummy implementation
locally.