seahub/avatar/templates/notification/avatar_friend_updated/notice.html

{% load i18n %}{% url profile_detail username=user.username as user_url %}
{% blocktrans with user as avatar_creator and avatar.get_absolute_url as avatar_url %}<a href="{{ user_url }}">{{ avatar_creator }}</a> has updated their avatar <a href="{{ avatar_url }}">{{ avatar }}</a>.{% endblocktrans %}