language/python: fix virtualenv symlinks for versioned Python
language/python: fix virtualenv symlinks for versioned Python

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