var $key in TableTaxSummary.php not printing tax name

[GarethHumbel]

var $key in TableTaxSummary.php not printing tax name

It should show next to tax value the tax name to indicate what tax is dealt with.
The bit I am talking about is here:

$html .= '
' . $key . '%
' . \CurrencyField::convertToUserFormatSymbol($tax, true, $currencySymbol) . '
';
}