OpenSSL: acknowledge CURLOPT_SSL_VERIFYHOST without VERIFYPEER

Setting only CURLOPT_SSL_VERIFYHOST without CURLOPT_SSL_VERIFYPEER set
should still verify that the host name fields in the server certificate
is fine or return failure.

Bug: http://curl.haxx.se/mail/lib-2013-10/0002.html
Reported-by: Ishan SinghLevett

lib/ssluse.c

@@ -2351,7 +2351,7 @@ ossl_connect_step3(struct connectdata *conn,
    * operations.
    */
 
-  if(!data->set.ssl.verifypeer)
+  if(!data->set.ssl.verifypeer && !data->set.ssl.verifyhost)
     (void)servercert(conn, connssl, FALSE);
   else
     retcode = servercert(conn, connssl, TRUE);