Squashed 'hack/libbuild/' changes from 447ab55..4cca445
Squashed 'hack/libbuild/' changes from 447ab55..4cca445

4cca445 Update libbuild.py

git-subtree-dir: hack/libbuild
git-subtree-split: 4cca4459d445d27086af5c57f619121fe02dd059

k8sdb/cli,k8sdb/cli,k8sdb/cli