fix clang static analyzer warning using namespace in header

[gartung]

No description provided.

[cmsbuild]

A new Pull Request was created by @gartung (Patrick Gartung) for CMSSW_7_6_X.

fix clang static analyzer warning using namespace in header

It involves the following packages:

RecoJets/JetProducers

@cmsbuild, @cvuosalo, @slava77 can you please review it and eventually sign? Thanks.
@rappoccio, @jdolen, @ahinzmann, @TaiSakuma, @yslai, @nhanvtran, @schoef, @mariadalfonso this is something you requested to watch as well.
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@Degano you are the release manager for this.
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[gartung]

@Dr15Jones

[Dr15Jones]

please test

[cmsbuild]

The tests are being triggered in jenkins.

[slava77]

a combined PR with other similar ones (at least by L2 area) would be nicer.
Less load on jenkins and faster to approve.

[cmsbuild]

+1
Tested at: 2447b59
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11020/7735/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11020/7735/summary.html

[cvuosalo]

+1

For #11020 2447b59

Fixing namespace warnings in jet pile-up header file. There should be no change in run-time behavior.

The code changes are satisfactory, and Jenkins tests against baseline CMSSW_7_6_X_2015-08-28-1100 show no significant differences, as expected.

[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

[davidlange6]

+1