Right now, there is no way to use these annotations, support multiple
`kubectl` versions, and not give users annoying warnings every time they
run `kubectl log`.
If a user is setting *both* annotations, they clearly know that the old
on is deprecated. Therefor, we should not warn them.
Kubernetes-commit: a7882d8a4264cdb9eaab9dc3d67cf0cc5afd5886
- update according to KEP: move getContainerName to helper
Signed-off-by: pacoxu <paco.xu@daocloud.io>
Kubernetes-commit: b54e823dbce08bff6fab979243663b0fea5a351f