themes/bootstrap-2/views/comments/_comment.html.erb
<li class='list-unstyled' id="comment-<%= comment.id %>">
<%= avatar_tag(email: comment.email, url: comment.url, class: 'img-circle pull-left gravatar') %>
<div class='content'>
<h4>
<%= t('.by') %> <%= comment.url.blank? ? h(comment.author) : nofollowified_link_to(h(comment.author), comment.url) %>
<%= display_date_and_time comment.created_at %>
</h4>
<%= comment.html %>
<%- unless comment.published? %>
<div class="spamwarning"><%= t('.this_comment_has_been_flagged_for_moderator_approval') %></div>
<%- end %>
<hr />
</div>
</li>