"brew upgrade" suggestion can fail if user has not done "brew update"

[adamancini]

I don't think Casks get updated as part of the regular auto-update that occurs during a brew upgrade - I have several times had to explicitly issue a brew update && brew upgrade replicatedhq/replicated/cli to get the CLI package to upgrade.

The suggestion from the binary should probably include something to that effect.

Today:

$ replicated cluster kubeconfig 8d9ae092
Update available: v0.70.0
To upgrade, run "brew upgrade replicatedhq/replicated/cli"

$ brew upgrade replicatedhq/replicated/cli
Warning: replicatedhq/replicated/cli 0.69.0 already installed

Should probably read:

To upgrade, run "brew update && brew upgrade replicatedhq/replicated/cli"

[adamancini]

Homebrew/brew#1946 is closed with no solution