Automatic merge from submit-queue
Fix audit_test regex for iso8601 timestamps
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**What this PR does / why we need it**: The audit_test unit test fails as some iso8601 timestamps are of the form 2016-09-13T10:32:50.823081217Z and the current regex doesn't allow T's or Z's.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:NONE
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Signed-off-by: Johnny Bieren <jbieren@redhat.com>
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