info: handle license array.
info: handle license array.

Fixes https://github.com/Homebrew/brew/issues/8132

EricFromCanada/brew,vitorgalvao/brew,sjackman/homebrew,JCount/brew,MikeMcQuaid/brew,sjackman/homebrew,konqui/brew,vitorgalvao/brew,Homebrew/brew,EricFromCanada/brew,Homebrew/brew,claui/brew,Homebrew/brew,MikeMcQuaid/brew,reitermarkus/brew,nandub/brew,sjackman/homebrew,claui/brew,EricFromCanada/brew,konqui/brew,reitermarkus/brew,nandub/brew,JCount/brew,mahori/brew,vitorgalvao/brew,MikeMcQuaid/brew,mahori/brew,mahori/brew,konqui/brew,reitermarkus/brew,JCount/brew,nandub/brew,MikeMcQuaid/brew,konqui/brew,sjackman/homebrew,vitorgalvao/brew,reitermarkus/brew,claui/brew,JCount/brew,Homebrew/brew,claui/brew,mahori/brew,nandub/brew,EricFromCanada/brew