A Typo In SSHD Man Page

OPENSSH 4.3p2 in Fedora Core 6 said:

AUTHORIZED_KEYS FILE FORMAT
~/.ssh/authorized_keys is the default file that lists the public keys that are permitted for RSA authentication in pro-tocol version 1 and for public key authentication (PubkeyAuthentication) in protocol version 2. AuthorizedKeysFile may be used to specify an alternative file.

However I found it does work with ~/.ssh/authorized_keys2 when you don't setup "AuthorizedKeysFile" in /etc/ssh/sshd_config.