Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/16579

Log:
commit ad3286e1570b1c533c8123a889efcc5428650d53
Author: Dolph Mathews <dolph.mathews at gmail.com>
Date:   Tue Nov 20 15:22:22 2012 -0600

    Expose auth failure details in debug mode
    
    Users can now run keystone with debug = True to reveal detailed messages
    about authentication/authorization failures. This is especially useful
    for new users setting up OpenStack for the first time.
    
    DocImpact
    
    Change-Id: I0d072d1f0147b53da90cd4214a1e843bf39ee8e4