A bit too late for the comment, but still:

Guy Grant (2014-08-10 18:25 +0400) wrote:

> +    (license
> +     (license:x11-style
> +      "http://scripts.sil.org/cms/scripts/page.php?item_id=OFL_web"))))

Since it's not an "X11-style", but an "OFL" license, why not use the
latter?  The patch for fixing it is attached.