added comments to ChainEvent::fileIndex()

[jpata]

Acting upon https://hypernews.cern.ch/HyperNews/CMS/get/edmFramework/3206/1.html, comments regarding the meaning of fwlite::ChainEvent::fileIndex() have been added to the ChainEvent.h header file.

[cmsbuild]

A new Pull Request was created by @jpata (Joosep Pata) for CMSSW_7_0_X.

added comments to ChainEvent::fileIndex()

It involves the following packages:

DataFormats/FWLite

@cmsbuild, @Dr15Jones, @ktf, @nclopezo can you please review it and eventually sign? Thanks.
@wmtan this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.
@ktf you are the release manager for this.

[Dr15Jones]

+1
Thanks

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IBs unless changes or unless it breaks tests. @ktf can you please take care of it?

[cmsbuild]

-1
When I ran the RelVals I found an error in the following worklfows:
4.53 step2

runTheMatrix-results/4.53_RunPhoton2012B+RunPhoton2012B+HLTD+RECODreHLT+HARVESTDreHLT/step2_RunPhoton2012B+RunPhoton2012B+HLTD+RECODreHLT+HARVESTDreHLT.log

1001.0 step2

runTheMatrix-results/1001.0_RunMinBias2011A+RunMinBias2011A+TIER0EXP+ALCAEXP+ALCAHARVD/step2_RunMinBias2011A+RunMinBias2011A+TIER0EXP+ALCAEXP+ALCAHARVD.log

1000.0 step2

runTheMatrix-results/1000.0_RunMinBias2011A+RunMinBias2011A+TIER0+SKIMD+HARVESTDfst2+ALCASPLIT/step2_RunMinBias2011A+RunMinBias2011A+TIER0+SKIMD+HARVESTDfst2+ALCASPLIT.log

you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-1791/1741/summary.html

[nclopezo]

it seems to be unrelated, I will start the tests again.

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IBs unless changes or unless it breaks tests. @ktf can you please take care of it?

[Dr15Jones]

@nclopezo did this test get run again?
@ktf this was only change to comments and is only used for FWLite.