Open Stack

Hi, I'd like you to take a look at this patch for potential
SecurityImpact.
https://review.openstack.org/36078

Log:
commit 92002a744b6c3e05a4de84d1ca5cbe71ae7e4a62
Author: Lance Bragstad <ldbragst at us.ibm.com>
Date:   Mon Jul 1 19:49:21 2013 +0000

    Address security concerns in PowerVM Driver
    
    Add two methods to common.py that will help check commands
    being sent to the remote VIOS system to prevent shell injection.
    
    fixes bug 1192971
    
    [SecurityImpact]
    
    Change-Id: If5ac48c5c889034c7b0ba24d977e8f4a14137a12