Feeds: Add an early exit when calling RSS functions directly.

While this file is depracated, it shouldn't throw errors when called directly.

Fixes #35835.

Props thib3113, dd32, TheGP, flymike, zodiac1978, williampatton.

Built from https://develop.svn.wordpress.org/trunk@49619


git-svn-id: http://core.svn.wordpress.org/trunk@49357 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/rss-functions.php

@@ -6,5 +6,9 @@
  * @deprecated 2.1.0
  */
 
+if ( ! defined( 'ABSPATH' ) ) {
+	exit();
+}
+
 _deprecated_file( basename( __FILE__ ), '2.1.0', WPINC . '/rss.php' );
 require_once ABSPATH . WPINC . '/rss.php';

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-beta4-49618';
+$wp_version = '5.6-beta4-49619';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.