title: Is there a way to tell syntastic which library to use to avoid @INC errors
body: <p>I'm editing a test file which is typically run with <code>prove -l</code> which automatically includes the <code>lib</code> directory when searching for packages to load. When editing the file, <a href="https://github.com/vim-syntastic/syntastic" rel="nofollow noreferrer">vim-syntastic</a> reports it can't find the needed packages because it is not looking in the <code>lib</code> directory.</p>
  
  <p>Is there a way to tell <code>syntastic</code> to include the <code>lib</code> directory in the @INC so I can avoid the <code>Can't locate Blah::Blah.pm in @INC</code> error without having to do <code>use lib 'lib'</code> at the top of my file?</p>