anchor.diff:        <th>Post ID</th>
         <th>Site</th>
         <th>Reason</th>
  +      <th>Failure reason</th>
       </tr>
     </thead>
   
  
positive.code:     <tr>
        <th>Post ID</th>
        <th>Site</th>
        <th>Actions</th>
      </tr>
    </thead>
  
negative.code:       <tr>
          <td><%= flag.post_id %></td>
          <td><%= flag.site.site_name %></td>
          <td><%= flag.flag_type.name %></td>
          <td><%= flag.failure_reason %></td>
        </tr>
      <% end %>
  