Reformat lint severities for readability
Reformat lint severities for readability

Summary: See D3482.

Test Plan: `arc lint`

Reviewers: vrana

Reviewed By: vrana

CC: aran

Differential Revision: https://secure.phabricator.com/D3501

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