Parse "title" in grub v1 config

def _parse_title(line_iter, cur_line, conf):
    """
    Parse "title" in grub v1 config
    """
    title = []
    conf['title'].append(title)
    title.append(('title_name', cur_line.split('title', 1)[1].strip()))
    while (True):
        line = next(line_iter)
        if line.startswith("title "):
            return line

        cmd, opt = _parse_cmd(line)
        title.append((cmd, opt))