title: Set different formatoptions for specific filetype
body: <p>I'm trying to turn on the <code>c</code> flag in formatoptions for all files except filetype vim. The following doesn't accomplish that:</p>
  
  <pre><code>autocmd BufRead,BufNew,BufEnter *.* set      formatoptions+=c
  autocmd FileType vim                setlocal formatoptions-=c
  </code></pre>
  
  <p>Can anyone tell me what I'm doing wrong? Thanks.</p>