Fix script so passing.txt is branch-dependent.
Fix script so passing.txt is branch-dependent.

[GEODE-4185]

The endpoint is changed to
http://files.apachegeode-ci.info/<branch>/passing.txt

deepakddixit/incubator-geode,davebarnes97/geode,davebarnes97/geode,pdxrunner/geode,smgoller/geode,masaki-yamakawa/geode,masaki-yamakawa/geode,masaki-yamakawa/geode,smanvi-pivotal/geode,jdeppe-pivotal/geode,smgoller/geode,smgoller/geode,jdeppe-pivotal/geode,deepakddixit/incubator-geode,davinash/geode,deepakddixit/incubator-geode,davinash/geode,jdeppe-pivotal/geode,pdxrunner/geode,jdeppe-pivotal/geode,pdxrunner/geode,smgoller/geode,PurelyApplied/geode,smgoller/geode,jdeppe-pivotal/geode,smgoller/geode,pdxrunner/geode,deepakddixit/incubator-geode,davinash/geode,PurelyApplied/geode,pdxrunner/geode,smanvi-pivotal/geode,davebarnes97/geode,pdxrunner/geode,jdeppe-pivotal/geode,pdxrunner/geode,deepakddixit/incubator-geode,masaki-yamakawa/geode,deepakddixit/incubator-geode,davebarnes97/geode,masaki-yamakawa/geode,PurelyApplied/geode,masaki-yamakawa/geode,PurelyApplied/geode,smanvi-pivotal/geode,davinash/geode,jdeppe-pivotal/geode,davebarnes97/geode,davebarnes97/geode,smgoller/geode,PurelyApplied/geode,PurelyApplied/geode,davinash/geode,smanvi-pivotal/geode,PurelyApplied/geode,smanvi-pivotal/geode,davinash/geode,davinash/geode,masaki-yamakawa/geode,davebarnes97/geode,deepakddixit/incubator-geode