have magic number check in locale modules.
rename: lib/libc/locale/setlocale_sb.c -> setlocale1.c
NOTE: this commit does not enable multibyte locale support, yet.
shot-term TODO:
- enable multibyte locales. this includes loadable locale modules
(#ifdef DLRUNE).
- populate LC_CTYPE definition files.
- other functions such as iconv()
- make libc functions more friendly with multibyte.
- multilingualize other LC_xx
- torture tests
XXX don't forget to "make depend" when you rebuild libc, multibyte.c is
moved from lib/libc/stdlib to lib/libc/locale.