Helm lint "--quiet" flag fix

[blueprismo]

The issue is pretty straightforward, I want to use the helm lint --quiet . command to check for errors during CI/CD.
But I got a bunch of [INFO] Errors which are not of my interest.

engine.go:206: [INFO] Missing required value: .Values.deployment.stage is required.
engine.go:206: [INFO] Missing required value: .Values.license_id is required.

To remove them, the helm lint --help output states:

--quiet print only warnings and errors

Which is not happening when I pass the --quiet flag. (I assume INFO is not ERROR nor WARNING).
I can bring a PR for this little change, either fix the documentation for the --help or (ideally) supress the INFO messages when the --quiet flag is set.

I am willing to provide any help or more information of any kind! Thanks in advance :)

Output of helm version:

version.BuildInfo{Version:"v3.14.2", GitCommit:"c309b6f0ff63856811846ce18f3bdc93d2b4d54b", GitTreeState:"clean", GoVersion:"go1.21.7"}

Output of kubectl version:

Client Version: v1.28.2
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3

Cloud Provider/Platform (AKS, GKE, Minikube etc.):
Doesn't apply

[yxxhero]

@blueprismo make sense. PR is welcome.

[blueprismo]

Hey @yxxhero , seems like the INFO level is hardcoded in https://github.com/helm/helm/blob/main/pkg/engine/engine.go#L206

If you don't mind, will add some conditional in between this line to ensure that if the quiet flag is passed do not print those messages.
Just FYI update message :)