Edit: automatic-upgrader-skin-compatibility.php
<?php if (!defined('ABSPATH')) die('No direct access.'); class Automatic_Upgrader_Skin extends Automatic_Upgrader_Skin_Main { public function feedback($string, ...$args) { // phpcs:ignore PHPCompatibility.LanguageConstructs.NewLanguageConstructs.t_ellipsisFound, VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- spread operator is not supported in PHP < 5.5 but WP 5.3 supports PHP 5.6 minimum parent::updraft_feedback($string); } }
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