title: How do I choose a certificate authority file when using thin?
body: <p>I know I can choose to verify the client with <code>--ssl-verify</code>, but how can I specify which CA chain that I want to use?  I'm used to providing a file (like with curl's <code>--cacert</code> or WEBrick's <code>:SSLCACertificateFile</code>), so I've got one ready, but I can't seem to find documentation on how to pass it to <code>thin</code>.</p>