REST API: Merge "not allowed to create new terms" permission error message with an existing string.

Follow-up to [39309], [39313].

See #38857.
Built from https://develop.svn.wordpress.org/trunk@47166


git-svn-id: http://core.svn.wordpress.org/trunk@46966 1a063a9b-81f0-0310-95a4-ce76da25c4cd

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

@@ -408,7 +408,7 @@ class WP_REST_Terms_Controller extends WP_REST_Controller {
 				&& ! current_user_can( $taxonomy_obj->cap->assign_terms ) ) ) {
 			return new WP_Error(
 				'rest_cannot_create',
-				__( 'Sorry, you are not allowed to create new terms.' ),
+				__( 'Sorry, you are not allowed to create terms in this taxonomy.' ),
 				array( 'status' => rest_authorization_required_code() )
 			);
 		}

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-47165';
+$wp_version = '5.4-alpha-47166';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.