- Patch #783584 by Pasqualle: fixed invalid HTML.

modules/book/book.admin.inc

@@ -246,8 +246,8 @@ function theme_book_admin_table($variables) {
       drupal_render($form[$key]['weight']),
       drupal_render($form[$key]['plid']) . drupal_render($form[$key]['mlid']),
       l(t('view'), $href),
-      $access ? l(t('edit'), 'node/' . $nid . '/edit', array('query' => $destination)) : '&nbsp',
-      $access ? l(t('delete'), 'node/' . $nid . '/delete', array('query' => $destination) )  : '&nbsp',
+      $access ? l(t('edit'), 'node/' . $nid . '/edit', array('query' => $destination)) : ' ',
+      $access ? l(t('delete'), 'node/' . $nid . '/delete', array('query' => $destination) )  : ' ',
     );
     $row = array('data' => $data);
     if (isset($form[$key]['#attributes'])) {

modules/node/content_types.inc

@@ -94,7 +94,7 @@ function node_type_form($form, &$form_state, $type = NULL) {
     '#description' => t('The human-readable name of this content type. This text will be displayed as part of the list on the <em>Add new content</em> page. It is recommended that this name begin with a capital letter and contain only letters, numbers, and spaces. This name must be unique.'),
     '#required' => TRUE,
     '#size' => 30,
-    '#field_suffix' => ' <small id="edit-name-suffix">' . ($type->locked ? t('Machine name: @name', array('@name' => $type->type)) : '&nbsp') . '</small>',
+    '#field_suffix' => ' <small id="edit-name-suffix">' . ($type->locked ? t('Machine name: @name', array('@name' => $type->type)) : '&nbsp;') . '</small>',
   );
 
   if (!$type->locked) {

modules/system/system.admin.inc

@@ -2017,7 +2017,7 @@ function system_add_date_format_type_form($form, &$form_state) {
     '#title' => t('Date type'),
     '#type' => 'textfield',
     '#required' => TRUE,
-    '#field_suffix' => ' <small id="edit-date-type-suffix">&nbsp</small>',
+    '#field_suffix' => ' <small id="edit-date-type-suffix">&nbsp;</small>',
   );
   $js_settings = array(
     'type' => 'setting',

modules/taxonomy/taxonomy.admin.inc

@@ -121,7 +121,7 @@ function taxonomy_form_vocabulary($form, &$form_state, $edit = array()) {
     '#default_value' => $edit['name'],
     '#maxlength' => 255,
     '#required' => TRUE,
-    '#field_suffix' => ' <small id="edit-name-suffix">&nbsp</small>',
+    '#field_suffix' => ' <small id="edit-name-suffix">&nbsp;</small>',
   );
   $js_settings = array(
     'type' => 'setting',