Ticket #39178: 39178.2.diff

src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php

@@ -160 +160 @@
 
                 // Ensure an include parameter is set in case the orderby is set to 'include'.
                 if ( ! empty( $request['orderby'] ) && 'include' === $request['orderby'] && empty( $request['include'] ) ) {
-                        return new WP_Error( 'rest_orderby_include_missing_include', sprintf( __( 'Missing parameter(s): %s' ), 'include' ), array( 'status' => 400 ) );
+                        return new WP_Error( 'rest_orderby_include_missing_include', __( 'You need to define an include parameter to order by include.' ), array( 'status' => 400 ) );
                 }
 
                 // Retrieve the list of registered collection query parameters.