From 2acd0aca7845feda1c4ca4dd708ca4e8a72c422b Mon Sep 17 00:00:00 2001
From: Joe Dolson <joedolson@git.wordpress.org>
Date: Thu, 17 Aug 2023 21:34:21 +0000
Subject: [PATCH] Administration: Invalid argument passed in
 additional_classes.

Fix `additional_classes` argument passed as a string instead of an array. Follow up to [56409].

Props joedolson.
See #57791.

git-svn-id: https://develop.svn.wordpress.org/trunk@56410 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/includes/network.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wp-admin/includes/network.php b/src/wp-admin/includes/network.php
index 562a733770..07969ff222 100644
--- a/src/wp-admin/includes/network.php
+++ b/src/wp-admin/includes/network.php
@@ -445,7 +445,7 @@ function network_step2( $errors = false ) {
 		$notice_message = '<strong>' . __( 'Caution:' ) . '</strong> ';
 		$notice_args    = array(
 			'type'               => 'warning',
-			'additional_classes' => 'inline',
+			'additional_classes' => array( 'inline' ),
 		);
 
 		if ( file_exists( $home_path . '.htaccess' ) ) {