Docs: Include 'parent' as an acceptable entry for the `$orderby` argument in `WP_Term_Query`.

h/t kalor.
See #41017.

Built from https://develop.svn.wordpress.org/trunk@40900


git-svn-id: http://core.svn.wordpress.org/trunk@40750 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-term-query.php

@@ -104,7 +104,7 @@ class WP_Term_Query {
 	 *     @type int|array    $object_ids             Optional. Object ID, or array of object IDs. Results will be
 	 *                                                limited to terms associated with these objects.
 	 *     @type string       $orderby                Field(s) to order terms by. Accepts term fields ('name',
-	 *                                                'slug', 'term_group', 'term_id', 'id', 'description'),
+	 *                                                'slug', 'term_group', 'term_id', 'id', 'description', 'parent'),
 	 *                                                'count' for term taxonomy count, 'include' to match the
 	 *                                                'order' of the $include param, 'meta_value', 'meta_value_num',
 	 *                                                the value of `$meta_key`, the array keys of `$meta_query`, or

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-40899';
+$wp_version = '4.9-alpha-40900';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.