yfix/yf

<tr class="{bg_class}">
    <td>{rev_number}</td>
    <td>{rev_date}</td>
    <td>{fsize_prev}</td>
    <td>{fsize_curr}</td>
    <td>{comment}</td>
    <td>
        <a href="{details_link}">{t(Preview)}</a>&nbsp;
    </td>
</tr>