I can't do this, I got an error when I try to do this operation:
Find:
</h5> <div class="smalltext">« <strong>', !empty($message['counter']) ? $txt['reply_noun'] . ' #' . $message['counter'] : '', ' ', $txt['on'], ':</strong> ', $message['time'], ' »</div> <div id="msg_', $message['id'], '_quick_mod"></div>
Replace:
</h5> <div class="smalltext">« <strong>', !($message['id'] == $context['topic_first_message']) ? $txt['reply_noun'] . ' #' . $message['counter'] : '', ' ', $txt['on'], ':</strong> ', $message['time'], ' »</div> <div id="msg_', $message['id'], '_quick_mod"></div>