CookieAuthentication default: 1 ? (0.2.4.2)

the manpage says:

CookieAuthentication 0|1
           If this option is set to 1, allow connections on the control port when the connecting process knows the contents of a file named
           "control_auth_cookie", which Tor will create in its data directory. This authentication method should only be used on systems with good
           filesystem security. (Default: 0)

so I'd expect if I'm only using

ControlPort 9051

(no CookieAuthentication, no HashedControlPassword) I should be able to connect to the controlport without any authentication but I get:

arm
[Errno 13] Permission denied: '/var/run/tor/control.authcookie'

Explicitely adding the default to torrc:

CookieAuthentication 0

solves the problem. Does this mean that the manpage is misleading and should be?

CookieAuthentication 0|1
           If this option is set to 1, allow connections on the control port when the connecting process knows the contents of a file named
           "control_auth_cookie", which Tor will create in its data directory. This authentication method should only be used on systems with good
           filesystem security. (Default: *1*)

Trac:
Username: cypherpunkx