REST API: Improve strings added after 4.7 string freeze.

Clarify the `rest_orderby_include_missing_include` error message.

Props PranaliPatel.
Fixes #39178.

Built from https://develop.svn.wordpress.org/trunk@40571


git-svn-id: http://core.svn.wordpress.org/trunk@40441 1a063a9b-81f0-0310-95a4-ce76da25c4cd

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

@@ -160,7 +160,7 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
 
 		// 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.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-40570';
+$wp_version = '4.8-alpha-40571';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.