Added class to print icon.

islandora.module

@@ -2010,7 +2010,7 @@ function islandora_menu_local_tasks_alter(&$data, $router_item, $root_path) {
         if ($tab['#link']['path'] == 'islandora/object/%/print_object') {
           if ($root_path == 'islandora/object/%') {
             $islandora_path = drupal_get_path('module', 'islandora');
-            $tab['#prefix'] = '<li>';
+            $tab['#prefix'] = '<li class="islandora-print">';
             $tab['#suffix'] = '</li>';
             $tab['#theme'] = 'link';
             $tab['#text'] = theme('image', array(