Document exceptions.
Document exceptions.

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