Error in /etc/pam.d/su ??

[Roman Kennke]

Hi there,

I just upgraded RELENG_5. Now it seems, that su lets me into root
without a passwd.
Checking /etc/pam.d/su it seems that there is an include control flag,
which isn't recognized:

auth            include         system
account         include         system

I suppose this must be changed to required or requisite? I am no PAM
expert, but this seems like a serious bug to me.

/Roman