:new: Add test for multiple bufferModifying linters
:new: Add test for multiple bufferModifying linters

DanPurdy/linter,Arcanemagus/linter,blakeembrey/linter,levity/linter,mdgriffith/linter,atom-community/linter,AtomLinter/Linter,AsaAyers/linter,UltCombo/linter,kaeluka/linter,e-jigsaw/Linter,steelbrain/linter,shawninder/linter,elkeis/linter,JohnMurga/linter,iam4x/linter