Use void instead of null where appropriate when pipe-delimiting @return types. If a @return only contains void, remove it.

See #32444.

Built from https://develop.svn.wordpress.org/trunk@32568


git-svn-id: http://core.svn.wordpress.org/trunk@32538 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-customize-setting.php

@@ -129,7 +129,7 @@ class WP_Customize_Setting {
 	 * @since 4.2.0
 	 * @access public
 	 *
-	 * @return bool|null Returns null if preview() has not been called yet.
+	 * @return bool|void If preview() has been called.
 	 */
 	public function is_current_blog_previewed() {
 		if ( ! isset( $this->_previewed_blog_id ) ) {
@@ -235,7 +235,7 @@ class WP_Customize_Setting {
 	 *
 	 * @since 3.4.0
 	 *
-	 * @return false|null False if cap check fails or value isn't set.
+	 * @return false|void False if cap check fails or value isn't set.
 	 */
 	final public function save() {
 		$value = $this->post_value();
@@ -461,7 +461,7 @@ class WP_Customize_Setting {
 	 * @param $root
 	 * @param $keys
 	 * @param bool $create Default is false.
-	 * @return null|array Keys are 'root', 'node', and 'key'.
+	 * @return array|void Keys are 'root', 'node', and 'key'.
 	 */
 	final protected function multidimensional( &$root, $keys, $create = false ) {
 		if ( $create && empty( $root ) )