Open Stack

Hi, I'd like you to take a look at this patch for potential
SecurityImpact.
https://review.openstack.org/123237

Log:
commit 0cd8389616df13f7927d35747ff5d285ae447cde
Author: Brant Knudson <bknudson at us.ibm.com>
Date:   Mon Sep 22 14:34:50 2014 -0500

    Safer use of eval
    
    eval() was used with an empty globals parameter. This meant that
    the expression could call __import__ and then do whatever (remove
    all your files, for examples). By setting globals to
    {'__builtins__': None} the expression can't use __import__.
    
    This is for security hardening.
    
    SecurityImpact
    
    Change-Id: I91a32a62204dd44fa850f9ec0efd4f45cd3d72c2
    Partial-Bug: #1367022