Automatic merge from submit-queue (batch tested with PRs 38947, 50239, 51115, 51094, 51116)

Fix comment and typos in node_controller

**What this PR does / why we need it**: 
1. fix comment to more accurately
2. fix typos


**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```
NONE
```