Text_Diff_Renderer_inline::_lines

    function _lines($lines, $prefix = ' ', $encode = true)
    {
        if ($encode) {
            array_walk($lines, array(&$this, '_encode'));
        }

        if ($this->_split_level == 'lines') {
            return implode("\n", $lines) . "\n";
        } else {
            return implode('', $lines);
        }
    }