ref: a3bce47d15d25fc3bca79ee50fca3fd4df538d5b
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