[CentOS] /etc/pam.d/system-auth changes in update

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On Thu, 10 Jul 2008 16:31:44 +0200, Kai Schaetzl wrote
> Filipe Brandenburger wrote on Wed, 9 Jul 2008 23:08:44 -0400:
> 
> > The exact same question came up two weeks ago.
> 
> And the answers were confusing at least me ;-)
> 
To me as well, having now read the thread. No one seems to know why the
changes were made, only that they *were* made. I'm still hoping that there
might be documentation on the impact of these changes.

Does anyone know, or have a link to, why system-auth was changed in the
most recent update to PAM?

TIA,
--Bill