fix cmssw patch version for non-standard IBs e.g ROOT6, DEVEL

[smuzaffar]

PR description:

This fixes the unit test failure (added by #29976 ) in non-standard IBs (e.g DEVEL, ROOT6 etc). Code here https://github.com/cms-tau-pog/cmssw/blob/7aaf1ab52d1f044b47e43ce446576a726fb2970e/RecoTauTag/RecoTau/python/tools/runTauIdMVA.py#L70 Assumes that that patch version of cmssw is either X or a number but for non-standard IBs it could be ROOT6, DEVEL etc. The change proposed here should fix this.

PR validation:

Build and successfully run unit test locally for both standard and non-standard IBs.

[smuzaffar]

please test

[cmsbuild]

The code-checks are being triggered in jenkins.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-30092/15832

• This PR adds an extra 16KB to repository

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/6767/console Started: 2020/06/03 14:07

[cmsbuild]

A new Pull Request was created by @smuzaffar (Malik Shahzad Muzaffar) for master.

It involves the following packages:

RecoTauTag/RecoTau

@perrotta, @cmsbuild, @slava77 can you please review it and eventually sign? Thanks.
@riga this is something you requested to watch as well.
@silviodonato, @dpiparo you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

+1
Tested at: ab45056
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-f161dd/6767/summary.html
CMSSW: CMSSW_11_2_X_2020-06-02-2300
SCRAM_ARCH: slc7_amd64_gcc820

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-f161dd/6767/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 36
• DQMHistoTests: Total histograms compared: 2783666
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2783615
• DQMHistoTests: Total skipped: 50
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 35 files compared)
• Checked 152 log files, 16 edm output root files, 36 DQM output files

[slava77]

+1

for #30092 ab45056

• technical

[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 (and backports should be raised in the release meeting by the corresponding L2)

[silviodonato]

+1