completions: fix zsh autocompletion issues
completions: fix zsh autocompletion issues

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