'Show the empty text in the table' throws Javascript error when there are no results.

If you use the 'Show the empty text in the table' option and there are no results for the view's query, when template_preprocess_views_view_table($vars) is run in template_preprocess_datatables_view(), it results in the following value for $vars['rows']:

Array
(
    [0] => Array
        (
            [0] => 
        )

)

This in turn causes DataTables to throw the error "DataTables warning (table id = 'datatable-1'): Requested unknown parameter '1' from the data source for row 0". This is the result of table rendering the following:

<tbody>
          <tr class="views-row-first views-row-last">
                  <td class="views-field views-field-">
                      </td>
              </tr>
      </tbody>

The $vars['rows'] array should be an empty array if there is no data to display.