ref: 129d74197a3de99fab0a386ebf152a06b3d4bf17
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