ref: 490e90d2122d80bce4e5f710e046b90fc9cc31ca
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