upgrade: tweak dependent messaging.
upgrade: tweak dependent messaging.

Output more without requiring `--verbose` and update the messages to
make clear what we're looking for and what we found/didn't find.

This is a little more noisy but it should help explain any delays to
users and make it more obvious what's failed if something does.

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