Broaden 1326312 to match py26/py27 failures

This bug caused many failures in Ironic's py26/py27 unit tests,
in addition to the tempest failures. This broadens the search
to match those failures as well.

Change-Id: I5f6ce3622860a36b564c33c3043672a31abb6ca0
Merge "Broaden 1326312 to match py26/py27 failures"