ref: 17cb502c1578b8e1a94f02b84cf47acfef6b20b1
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