Code review comment for ~alanec/plainbox-provider-checkbox:cpufreq_test-failure-output

Looking back at this MR, I was interrupted before I could finish reading your prior comments originally, thus I assumed to pull verbose mode. Sorry about that.
Even though I've discarded the addition of verbose mode, I can go back and add it as you were saying. I think this idea has merit, we can touch base tomorrow in regards to moving forward with this proposal or adding verbose mode as previous described.