retry.erb in sidekiq-2.15.0

- old
+ new

@@ -22,9 +22,9 @@
       </tr>
     <% end %>
   </tbody>
 </table>
 <form class="form-horizontal" action="<%= root_path %>retries/<%= job_params(@retry, @retry.score) %>" method="post">
-  <a class="btn" href="<%= root_path %>retries"><%= t('GoBack') %></a>
+  <a class="btn btn-default" href="<%= root_path %>retries"><%= t('GoBack') %></a>
   <input class="btn btn-primary" type="submit" name="retry" value="<%= t('RetryNow') %>" />
   <input class="btn btn-danger" type="submit" name="delete" value="<%= t('Delete') %>" />
 </form>