Issue #1439692 by Gábor Hojtsy: update for Fixed Rename field language properties to langcode.

core/modules/field/field.install

@@ -316,7 +316,7 @@ function _update_7000_field_delete_instance($field_name, $entity_type, $bundle)
  *   by the $key parameter.
  * @ingroup update-api-7.x-to-8.x
  */
-function _update_8000_field_read_fields(array $conditions = array(), $key = 'id') {
+function _update_7000_field_read_fields(array $conditions = array(), $key = 'id') {
   $fields = array();
   $query = db_select('field_config', 'fc', array('fetch' => PDO::FETCH_ASSOC))
     ->fields('fc');

core/modules/field/modules/field_sql_storage/field_sql_storage.install

@@ -109,7 +109,7 @@ function field_sql_storage_update_8000(&$sandbox) {
   );
 
   // Retrieve field data.
-  $fields = _update_8000_field_read_fields(array('storage_type' => 'field_sql_storage'));
+  $fields = _update_7000_field_read_fields(array('storage_type' => 'field_sql_storage'));
 
   // Update schema.
   foreach ($fields as $field) {