Fix secondary expected output for commit_ts test

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

Commit: c56949168cc0aeac703865c3239f7bc7ca670402
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2015-10-28T02:02:04Z
Releases: 9.5.0
Fix secondary expected output for commit_ts test

Per red wall in buildfarm

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