prefix the commit message with (X.Y)

def amend_commit_message(self, cherry_pick_branch):
        """ prefix the commit message with (X.Y) """

        commit_prefix = ""
        if self.prefix_commit:
            commit_prefix = f"[{get_base_branch(cherry_pick_branch)}] "
        updated_commit_message = f"""{commit_prefix}{self.get_commit_message(self.commit_sha1)}
(cherry picked from commit {self.commit_sha1})


Co-authored-by: {get_author_info_from_short_sha(self.commit_sha1)}"""
        if self.dry_run:
            click.echo(f"  dry-run: git commit --amend -m '{updated_commit_message}'")
        else:
            cmd = ["git", "commit", "--amend", "-m", updated_commit_message]
            try:
                subprocess.check_output(cmd, stderr=subprocess.STDOUT)
            except subprocess.CalledProcessError as cpe:
                click.echo("Failed to amend the commit message \u2639")
                click.echo(cpe.output)
        return updated_commit_message