After Storefront theme update parse error on the site

Hi!

I updated to the latest version Storefront theme and getting now following parse error on the site&admin. I′m using Storefront`s childtheme.

Parse error: syntax error, unexpected T_FUNCTION in /mysite/htdocs/wp-content/themes/storefront/inc/customizer/class-storefront-customizer.php on line 74

Line 74 is following code, code validator gives an error too but as I don`t know php, have no idea how to fix it…

public function default_theme_mod_values() {
      foreach ( Storefront_Customizer::get_storefront_default_setting_values() as $mod => $val ) {
        add_filter( 'theme_mod_' . $mod, function( $setting ) use ( $val ) {
          return $setting ? $setting : $val;
        }, 10 );
      }
    }

[moderated to add ‘code’ style to the code]