While we require camelCase by convention for official APIs, CRDs may use
`snake_case`, and the generic describer prints this as `Snake _ Case`.

Prow is impacted by this for the ProwJob CRD:

```
  Decoration _ Config:
    Gcs _ Configuration:
      Bucket:                    origin-ci-test
      Default _ Org:             openshift
      Default _ Repo:            origin
      Path _ Strategy:           single
    Gcs _ Credentials _ Secret:  gcs-publisher-credentials
```