Fix regex that breaks integration/cmd_report_test:verbose

[vangyzen]

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[vangyzen]

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[asomers]

@vangyzen would you mind resubmitting this PR to https://github.com/freebsd/kyua , now that we've forked the project?

[vangyzen]

@asomers Done: https://github.com/freebsd/kyua/pull/7