feat(banner): standardize user agent and output#5154

k8s-ci-robot merged 13 commits intokubernetes-sigs:masterkubernetes-sigs/external-dns:masterfrom

gofogo:chore-user-agen-and-bannergofogo/k8s-sigs-external-dns-fork:chore-user-agen-and-bannerCopy head branch name to clipboard