Merge pull request #63137 from krzysied/etcd_version_typo_fix

Automatic merge from submit-queue. 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>.

etcd version typo fix

**What this PR does / why we need it**:
Allows BUNDLED_VERSIONS string to be parsed correctly.

```release-note
NONE
```
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Kubernetes Submit Queue 2018-04-25 08:09:28 -07:00 committed by GitHub
commit e1e050a094
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@ -42,7 +42,7 @@ set -o nounset
# NOTE: BUNDLED_VERSION has to match release binaries present in the
# etcd image (to make this script work correctly).
BUNDLED_VERSIONS="2.2.1, 2.3.7, 3.0.17, 3.1.12 3.2.18"
BUNDLED_VERSIONS="2.2.1, 2.3.7, 3.0.17, 3.1.12, 3.2.18"
ETCD_NAME="${ETCD_NAME:-etcd-$(hostname)}"
if [ -z "${DATA_DIRECTORY:-}" ]; then