software_spec: fix cellar any handling.
software_spec: fix cellar any handling.

`cellar :any` actually requires no references to the cellar, prefix or
repository (not just cellar) so we can pour those bottles anywhere
regardless of the cellar, prefix or repository.

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