una/template/comment_reply_to.html

<span class="__style_prefix__-reply-to">
    <a href="__par_cmt_link__" title="__par_cmt_title__" class="bx-def-font-meta"><i class="sys-icon reply"></i> <span><bx_text:_in_reply_to /></span> <div class="inline-block align-middle">__par_cmt_author_unit__</div> <span>__par_cmt_author__</span></a>
</span>