anchor.diff:  <% if @show_profile %>
     <div id="user_profile_header">
       <div id="header_right" class="sidebar">
  -      <% if !@track_thing.nil? %>
  +      <% unless @track_thing.nil? %>
           <h2><%= _('Track this person') %></h2>
           <%= render :partial => 'track/tracking_links', :locals => { :track_thing => @track_thing, :own_request => false, :location => 'sidebar' } %>
           <%= render :partial => 'track/rss_feed', :locals => { :track_thing => @track_thing, :location => 'sidebar' } %>
         <% end %>
   
  -      <% if !@xapian_requests.nil? %>
  +      <% unless @xapian_requests.nil? %>
           <h2><%= _('On this page') %></h2>
           <a href="#foi_requests"><%= _('FOI requests') %></a>
           <br><a href="#annotations"><%= _('Annotations') %></a>
  
positive.code:     </p>
  
      <ul>
        <% for undescribed_request in @undescribed_requests %>
          <li><%= request_link(undescribed_request) %></li>
        <% end %>
      </ul>
  
negative.code:   <% @title = _("{{user_name}} - user profile", :user_name => h(@display_user.name)) %>
  <% end %>
  
  <% if @same_name_users.size >= 1 %>
    <p>
      <%= _('There is <strong>more than one person</strong> who uses this site ' \
            'and has this name. One of them is shown below, you may mean a ' \
            'different one:')%>
      <% @same_name_users.each do |same_name_user| %>
        <%= user_link(same_name_user) %>
      <% end %>
    </p>
  <% end %>
  