# With ternaries
        $nl = $separator2 ?? $remainder eq "\n" ?? $remainder
                                                !! $separator2
                          !! $separator;

# Original
        if $separator2 {
            if $remainder eq "\n" {
                $nl = $remainder;
            }
            else {
                $nl = $separator2;
            }
        }
        else {
            $nl = $separator;
        }