Fix secondary expected output for commit_ts test

Alvaro Herrera <alvherre@alvh.no-ip.org>

Commit: dbe6f434ee1852f08c011065467a6cfc5ce10864
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2015-10-28T02:03:22Z
Releases: 9.6.0
Fix secondary expected output for commit_ts test

Per red wall in buildfarm

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