[PPC] fix two unit tests in FWCore/MessageService

[mrodozov]

PR description:

two tests are failing due to clang output getting into the log output and the output compared with a reference.
this removes the clang output from the logs.

PR validation:

the two unit tests run after this change

if this PR is a backport please specify the original PR and why you need to backport that PR:

no backport this only concerns powerpc IBs

[mrodozov]

please test

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-32082/19729

• This PR adds an extra 16KB to repository

[cmsbuild]

The tests are being triggered in jenkins.

• CMSSW_11_2_X_2020-11-10-1100/slc7_amd64_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/10620/console Started: 2020/11/10 17:40

[cmsbuild]

A new Pull Request was created by @mrodozov (Mircho Rodozov) for master.

It involves the following packages:

FWCore/MessageService

@makortel, @smuzaffar, @cmsbuild, @Dr15Jones can you please review it and eventually sign? Thanks.
@makortel, @wddgit this is something you requested to watch as well.
@silviodonato, @dpiparo, @qliphy you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

+1
Tested at: cea411b
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-1ccacd/10620/summary.html
CMSSW: CMSSW_11_2_X_2020-11-10-1100
SCRAM_ARCH: slc7_amd64_gcc820

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-1ccacd/10620/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 4 differences found in the comparisons
• DQMHistoTests: Total files compared: 35
• DQMHistoTests: Total histograms compared: 2529296
• DQMHistoTests: Total failures: 7
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2529267
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 34 files compared)
• Checked 148 log files, 22 edm output root files, 35 DQM output files

[makortel]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @silviodonato, @dpiparo, @qliphy (and backports should be raised in the release meeting by the corresponding L2)

[silviodonato]

+1