(legacy) fix spacing diag_backup.php

src/www/diag_backup.php

@@ -613,8 +613,10 @@ $( document ).ready(function() {
                 <div class="table-responsive">
                   <table class="table table-striped ">
                     <thead>
+                      <tr>
                         <th class="col-sm-1"></th>
                         <th class="col-sm-3"></th>
+                      </tr>
                     </thead>
                     <tbody>
                      <tr>
@@ -677,7 +679,7 @@ $( document ).ready(function() {
         </section>
       </form>
     </div>
-</div>
+  </div>
 </section>
 
 <?php include("foot.inc"); ?>