Comment 1 for bug 1422095

Reviewed: https://review.openstack.org/154713
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=ad08c7a1f0c4e6a1e44b5ad02f9efbf86a2a878e
Submitter: Jenkins
Branch: master

commit ad08c7a1f0c4e6a1e44b5ad02f9efbf86a2a878e
Author: Anish Bhatt <email address hidden>
Date: Tue Feb 10 15:59:04 2015 -0800

    Improve error handling in refactored Tgt driver

    Only allow IOError to fall through when file not found is
    acceptable. Cleanup a few error messages, remove uses of six as
    this is not required

    Closes-Bug: 1422095
    Change-Id: I8a8f1ee561b15b38860b31cae1b444527e998869