suppress a to-do reminder in PFEGammaAlgo.cc from LogWarning to LogInfo

[slava77]

backport of #23217

I'm downgrading the severity of the message "Need to implement proper merging of two gsf candidates!" and put it on the list of reco issues in #23216

this is another PR in a series of cleanup of logError/logWarning in the prompt reco jobs (based on tests in run 315420)

[cmsbuild]

A new Pull Request was created by @slava77 (Slava Krutelyov) for CMSSW_10_1_X.

It involves the following packages:

RecoParticleFlow/PFProducer

@perrotta, @cmsbuild, @slava77 can you please review it and eventually sign? Thanks.
@mmarionncern, @lgray, @seemasharmafnal, @bachtis, @cbernet this is something you requested to watch as well.
@davidlange6, @slava77, @fabiocos you are the release manager for this.

cms-bot commands are listed here

• Backported from suppress a to-do reminder in PFEGammaAlgo.cc from LogWarning to LogInfo #23217

[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/27999/console Started: 2018/05/17 06:16

[cmsbuild]

+1
Tested at: 59f0f75
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-23225/27999/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-23225/27999/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 12 differences found in the comparisons
• DQMHistoTests: Total files compared: 29
• DQMHistoTests: Total histograms compared: 2508838
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2508661
• DQMHistoTests: Total skipped: 176
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 28 files compared)
• Checked 119 log files, 9 edm output root files, 29 DQM output files

[slava77]

+1

for #23225 59f0f75

• jenkins tests pass and show some reduction in the logwarnings, as expected

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_10_1_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_10_2_X is complete. This pull request will now be reviewed by the release team before it's merged. @davidlange6, @slava77, @smuzaffar, @fabiocos (and backports should be raised in the release meeting by the corresponding L2)

[fabiocos]

+1