Comparison validator doesn't work for times with minutes 0-9

If using a comparison validator for comparing time fields, it doesn't validate if either time has a single-digit minute value.

Though the minutes show as double-digits in the dropdown, when it gets to the code:

elseif ($components[$entry[$count]['key']]['type'] === 'time') {
  $time = $value['hour'] . ':' . $value['minute'];

$value['minute'] is a single-digit number. This makes the call to strtotime() fail to convert it to a timestamp every time for such values.

This can be fixed by padding the single-digit minute values to two digits with a zero.

$time = $value['hour'] . ':' . str_pad($value['minute'], 2, '0', STR_PAD_LEFT);