Fix multiple statements on one line def

def fix_e704(self, result):
        """Fix multiple statements on one line def"""
        (line_index, _, target) = get_index_offset_contents(result,
                                                            self.source)
        match = STARTSWITH_DEF_REGEX.match(target)
        if match:
            self.source[line_index] = '{}\n{}{}'.format(
                match.group(0),
                _get_indentation(target) + self.indent_word,
                target[match.end(0):].lstrip())