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What type of PR is this?
/kind cleanup
What this PR does / why we need it:
Squashed 'release-tools/' changes from 4aff857..5d874cc
5d874cc Merge pull request #112 from xing-yang/cleanup
79bbca7 Cleanup
d437673 Merge pull request #111 from xing-yang/update_snapshot_v1_rc
57718f8 Update snapshot CRD version
git-subtree-dir: release-tools
git-subtree-split: 5d874cc
Does this PR introduce a user-facing change?: