[RFC PATCH] use sulogin in single-user mode

[Bill Nottingham]

Chris Adams (cmadams at hiwaay.net) said: 
> One other note about this: this would break with a separate /usr and a
> failure in mounting /usr, because (at least in F12) /sbin/sulogin is
> linked against libfreebl3.so (which is in /usr/lib{,64}).  It looks like
> libfreebl3.so was moved from /lib{,64} in F11 to /usr/lib{,64} in F12,
> but the changelog doesn't say why.

This is being fixed.

Bill