Merge pull request #60080 from yue9944882/fix-incorrect-grammar-in-comment

Automatic merge from submit-queue (batch tested with PRs 59740, 59728, 60080, 60086, 58714). 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>.

fixes document grammar

**What this PR does / why we need it**:

ATT

**Special notes for your reviewer**:

**Release note**:

```release-note

```
pull/8/head
Kubernetes Submit Queue 2018-03-19 21:34:32 -07:00 committed by GitHub
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@ -235,7 +235,7 @@ func (p *podWorkers) removeWorker(uid types.UID) {
delete(p.podUpdates, uid)
// If there is an undelivered work update for this pod we need to remove it
// since per-pod goroutine won't be able to put it to the already closed
// channel when it finish processing the current work update.
// channel when it finishes processing the current work update.
if _, cached := p.lastUndeliveredWorkUpdate[uid]; cached {
delete(p.lastUndeliveredWorkUpdate, uid)
}