Updating the pylint linter to set the output fomat correctly depending on the version of pylint installed
Updating the pylint linter to set the output fomat correctly depending on the version of pylint installed

See: <https://github.com/facebook/arcanist/pull/161>

Reviewed by: epriestley

wxstars/arcanist,r4nt/arcanist,memsql/arcanist,kevinseelbach/arcanist,wharris/arcanist,chundongwang/arcanist,codelabs-ch/arcanist,kevinseelbach/arcanist,wikimedia/phabricator-arcanist,wikimedia/phabricator-arcanist,calblueprint/arcanist,jra3/arcanist,coursera/arcanist,Khan/arcanist,dguo-coursera/arcanist,memsql/arcanist,hach-que/arcanist,eSpark/arcanist,jra3/arcanist,phacility/arcanist,codelabs-ch/arcanist,PageUpPeopleOrg/arcanist-patches,haskell-infra/arcanist,calblueprint/arcanist,chundongwang/arcanist,sneakpeeq/arcanist,eSpark/arcanist,Khan/arcanist,uber/arcanist,folsom-labs/arcanist,memsql/arcanist,chundongwang/arcanist,kevinseelbach/arcanist,KieranHayes/arcanist,zhihu/arcanist,folsom-labs/arcanist,fivestars/arcanist,r4nt/arcanist,sneakpeeq/arcanist,coursera/arcanist,uber/arcanist,aik099/arcanist,wharris/arcanist,kevinseelbach/arcanist,uber/arcanist,hach-que/arcanist,phacility/arcanist,hach-que/arcanist,memsql/arcanist,Symplicity/arcanist,fivestars/arcanist,alexmv/arcanist,dguo-coursera/arcanist,sneakpeeq/arcanist,aik099/arcanist,calblueprint/arcanist,chundongwang/arcanist,aik099/arcanist,eSpark/arcanist,Khan/arcanist,codelabs-ch/arcanist,dguo-coursera/arcanist,zhihu/arcanist,fivestars/arcanist,wxstars/arcanist,phacility/arcanist,aik099/arcanist,haskell-infra/arcanist,KieranHayes/arcanist,jra3/arcanist,PageUpPeopleOrg/arcanist-patches,wharris/arcanist,sneakpeeq/arcanist,zhihu/arcanist,dguo-coursera/arcanist,wxstars/arcanist,r4nt/arcanist,folsom-labs/arcanist,coursera/arcanist,coursera/arcanist,alexmv/arcanist,fivestars/arcanist,haskell-infra/arcanist,KieranHayes/arcanist,wikimedia/phabricator-arcanist,wharris/arcanist,wxstars/arcanist,codelabs-ch/arcanist,uber/arcanist,jra3/arcanist,Symplicity/arcanist,alexmv/arcanist,KieranHayes/arcanist,zhihu/arcanist,phacility/arcanist,wikimedia/phabricator-arcanist,PageUpPeopleOrg/arcanist-patches,haskell-infra/arcanist,Khan/arcanist,eSpark/arcanist,Symplicity/arcanist,r4nt/arcanist,hach-que/arcanist,PageUpPeopleOrg/arcanist-patches,folsom-labs/arcanist,codelabs-ch/arcanist,alexmv/arcanist,calblueprint/arcanist,Symplicity/arcanist,phacility/arcanist