false positive on RotateKubeletServerCertificate test in openshift 3.11

[vsevel]

Hello,

I am running kube-bench on the a compute node in openshift 3.11
my node-config.yaml contains:

feature-gates:
  - RotateKubeletClientCertificate=true,RotateKubeletServerCertificate=true

I run:
docker run --rm --pid=host -v /etc:/etc:ro -v /var:/var:ro -t aquasec/kube-bench:latest node --version ocp-3.10

and I get:

[PASS] 7.14 Verify that the RotateKubeletClientCertificate argument is set to true
[FAIL] 7.15 Verify that the RotateKubeletServerCertificate argument is set to true

If I change the client certificate value to false:

  feature-gates:
  - RotateKubeletClientCertificate=false,RotateKubeletServerCertificate=true

then I get:

[FAIL] 7.14 Verify that the RotateKubeletClientCertificate argument is set to true
[FAIL] 7.15 Verify that the RotateKubeletServerCertificate argument is set to true

which is appropriate for the client but not for the server.

Expectation: 7.15 should not fail when we have:

  feature-gates:
  - RotateKubeletClientCertificate=true,RotateKubeletServerCertificate=true

[simar7]

I'd like to tackle this if it's still up for grabs.

cc/ @lizrice