ref: c19f9bc26e3e55fff0ba2bec80c40f43509bf779
dir: /support/vim/ftdetect/mbld.vim/
au BufRead,BufNewFile bld.proj \ setlocal ft=mbld | \ setlocal noet | \ setlocal sw=8 au BufRead,BufNewFile bld.sub \ setlocal ft=mbld | \ setlocal noet | \ setlocal sw=8