Warning: your HOMEBREW_PREFIX is set to /usr/local but HOMEBREW_CELLAR is set
to /usr/local/Cellar. Your current HOMEBREW_CELLAR location will stop
you being able to use all the binary packages (bottles) Homebrew provides. We
recommend you move your HOMEBREW_CELLAR to /usr/local/Cellar which will get you
access to all bottles."
What do I need to do here?