public function deleteAll() {
$this->state->delete('drupal_css_cache_files');
- $delete_stale = function($uri) {
+ $delete_stale = function ($uri) {
// Default stale file threshold is 30 days.
if (REQUEST_TIME - filemtime($uri) > \Drupal::config('system.performance')->get('stale_file_threshold')) {
file_unmanaged_delete($uri);