Return empty post list instead of fault code when there are no posts. Props josephscott. fixes #7287

git-svn-id: http://svn.automattic.com/wordpress/trunk@9133 1a063a9b-81f0-0310-95a4-ce76da25c4cd

xmlrpc.php

@@ -2598,8 +2598,7 @@ class wp_xmlrpc_server extends IXR_Server {
 		$posts_list = wp_get_recent_posts($num_posts);
 
 		if (!$posts_list) {
-			$this->error = new IXR_Error(500, __('Either there are no posts, or something went wrong.'));
-			return $this->error;
+			return array( );
 		}
 
 		set_current_user( 0, $user_login );