Automatic merge from submit-queue (batch tested with PRs 50890, 52484, 52542, 52567, 50672). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
Fix return 0 error in DefaultSubCommandRun
Fixes https://github.com/kubernetes/kubernetes/issues/50644
@mengqiy most of our command didn't return 1 when error, is because it invoke `DefaultSubCommandRun` which created in this pr https://github.com/kubernetes/kubernetes/pull/35206, I'm not sure if it's ok to directly add an `os.Exit` in that function, so also cc @juanvallejo @fabianofranz for review.
also @apelisse @mengqiy I think we don't have any test for check return value now ? cmiiw, I will add some test in test-cmd since it's easy to write scripts check return value, wdyt ?
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