Authoritate source of sulogin(8)

[Jesse Smith]

> 
> Jesse, what is your position on this matter? Should versions, bundled
> with util-linux and sysvinit be considered forks, or maybe version in
> sysvinit could be dropped?
> 
> I find current situation quite confusing. Unlike situation with busybox
> and coreutils, I do not see ideological reasons to not perform some kind
> of unification.
> 

I don't want to drop sulogin from upstream because it's possible other
distros apart from Debian still use it. I will take a look at the
util-linux package's version. If they are close to the same, I can
remerge their version into sysvinit and distributions can use whichever
copy they like.