Fix one histogram name in MultiTrackValidator

[makortel]

The name of "number of pileup tracks vs dz" histogram was left "incorrect" in #9201, that resulted the "pileup rate vs. dz" plot being missing in 750pre6 RelVals. This PR renames the histogram such that postProcessorTrack picks it up to calculate the pileup rate.

Tested in CMSSW_7_5_0_pre6, expected changes are

• num_pileup_versus_dz -> num_pileup_dz rename
• appearance of pileuprate_dz histogram
• knock-on effects in globalEfficiencies histograms

@rovere @VinInn

[cmsbuild]

A new Pull Request was created by @makortel (Matti Kortelainen) for CMSSW_7_6_X.

Fix one histogram name in MultiTrackValidator

It involves the following packages:

Validation/RecoTrack

@cmsbuild, @danduggan, @deguio can you please review it and eventually sign? Thanks.
@GiacomoSguazzoni, @rovere, @VinInn, @cerati, @wmtford, @istaslis, @dgulhan this is something you requested to watch as well.
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[deguio]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_6_X IBs or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[cmsbuild]

+1
Tested at: 0fe9bd0
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10068/4486/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_6_X IBs (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10068/4486/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_6_X IBs (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[cmsbuild]

+1
Tested at: 0fe9bd0
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10068/6071/summary.html

[davidlange6]

+1

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10068/6071/summary.html