Docs: Add a missing return description for `get_post_taxonomies()`.

h/t deeptiboddapati.
See #39130.

Built from https://develop.svn.wordpress.org/trunk@40298


git-svn-id: http://core.svn.wordpress.org/trunk@40205 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/taxonomy.php

@@ -3993,7 +3993,7 @@ function get_the_taxonomies( $post = 0, $args = array() ) {
  * @since 2.5.0
  *
  * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
- * @return array
+ * @return array An array of all taxonomy names for the given post.
  */
 function get_post_taxonomies( $post = 0 ) {
 	$post = get_post( $post );

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-40297';
+$wp_version = '4.8-alpha-40298';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.