Is the --stack-setup-yaml flag ignored by stack setup? If I pass something with that flag, it doesn't seem to affect the operation. The only place I see --stack-setup-yaml mentioned is in the Changlog entry for v0.1.5.0.

The reason I'm bringing this up is that I was confused for a bit trying to specify a different stack.yaml file other than the default. I eventually realized it should be stack --stack-yaml <file> setup. So having both stack setup --stack-setup-yaml <file> and stack --stack-yaml <file> setup is confusing. If --stack-setup-yaml is not being used, I think it should be removed.