title: CONVERSION ERROR in vim
body: <p>Adding <code>set listchars=tab:▸\ ,trail:·,extends:#,nbsp:·</code> line is causing "CONVERSION ERROR" while saving the vimrc file.
  I am using gvim 7.3 under Window 7.</p>
  
  <p>I have added this character using ("▸") using ctrl-vu 25B8.</p>
  
  <p>my vimrc file has also <code>set encoding=utf-8</code></p>
  
  <p>Is it possible to resolve this error.</p>
  
  <p>Thanks</p>