Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/17015

Log:
commit eff17b4b1888d3d56bb1ede59e382b8430e2afa9
Author: Joe Gordon <jogo at cloudscaling.com>
Date:   Mon Nov 26 22:55:19 2012 +0000

    Provide better error message for aggregate-create
    
    For an InvalidAggregateAction exception:
    Before: 'ERROR: There was a conflict when trying to complete your request (HTTP 409)'
    After: 'ERROR: Cannot perform action 'create_aggregate' on aggregate 'N/A'. Reason: invalid zone. (HTTP 400)'
    
    docImpact
    
    Fix bug 1083353
    
    Change-Id: I26e30059fe5bbc30eecc52cccec4eba2a57d00db
    (cherry picked from commit 4e43747037058522087e6eb71ef3bcce266d55cc)