cask/cmd/update: output message consistency
cask/cmd/update: output message consistency

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