Update zsh completion
Update zsh completion

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