k8s.io/kube-openapi:upgrade k8s.io/klog to v2

[tanjunchen]

ref:kubernetes/kubernetes#89961

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
To complete the pull request process, please assign mbohlool
You can assign the PR to them by writing /assign @mbohlool in a comment when ready.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[tanjunchen]

/assign @mbohlool

[tanjunchen]

how to remove v1?
it will reproduce again after running go mod tidy.

[apelisse]

I had to install github.com/KyleBanks/depth/cmd/depth but this seems to work:

> for dir in $(go list ./...); do depth -explain k8s.io/klog "$dir"; done
k8s.io/kube-openapi/cmd/openapi-gen -> k8s.io/kube-openapi/cmd/openapi-gen/args -> k8s.io/gengo/args -> k8s.io/gengo/generator -> k8s.io/gengo/parser -> k8s.io/klog
k8s.io/kube-openapi/cmd/openapi-gen -> k8s.io/kube-openapi/cmd/openapi-gen/args -> k8s.io/gengo/args -> k8s.io/gengo/generator -> k8s.io/klog
k8s.io/kube-openapi/cmd/openapi-gen/args -> k8s.io/gengo/args -> k8s.io/gengo/generator -> k8s.io/gengo/parser -> k8s.io/klog
k8s.io/kube-openapi/cmd/openapi-gen/args -> k8s.io/gengo/args -> k8s.io/gengo/generator -> k8s.io/klog
k8s.io/kube-openapi/pkg/generators -> k8s.io/gengo/args -> k8s.io/gengo/generator -> k8s.io/gengo/parser -> k8s.io/klog
k8s.io/kube-openapi/pkg/generators -> k8s.io/gengo/args -> k8s.io/gengo/generator -> k8s.io/klog

[dims]

@tanjunchen @apelisse i filed #196 with this commit and another commit pulling in newer gengo which uses klog v2.

[tanjunchen]

sure . Thanks

[serathius]

Please change to v2.0.0

[tanjunchen]

ok

[dims]

/assign @sttts @lavalamp