Update Library/Homebrew/dev-cmd/audit.rb
Update Library/Homebrew/dev-cmd/audit.rb

audit license: suppress missing license problem unless it is a new_formula

Co-authored-by: Mike McQuaid <a17fed27eaa842282862ff7c1b9c8395a26ac320@mikemcquaid.com>
JCount/brew,vitorgalvao/brew,vitorgalvao/brew,EricFromCanada/brew,JCount/brew,nandub/brew,EricFromCanada/brew,EricFromCanada/brew,mahori/brew,MikeMcQuaid/brew,sjackman/homebrew,mahori/brew,claui/brew,Homebrew/brew,Homebrew/brew,sjackman/homebrew,reitermarkus/brew,MikeMcQuaid/brew,MikeMcQuaid/brew,reitermarkus/brew,mahori/brew,vitorgalvao/brew,mahori/brew,JCount/brew,konqui/brew,EricFromCanada/brew,claui/brew,claui/brew,nandub/brew,reitermarkus/brew,konqui/brew,claui/brew,Homebrew/brew,Homebrew/brew,sjackman/homebrew,MikeMcQuaid/brew,reitermarkus/brew,JCount/brew,sjackman/homebrew,vitorgalvao/brew,konqui/brew,nandub/brew,konqui/brew,nandub/brew