Cant merge context into kube config file from Managed AKS cluster

### **This is autogenerated. Please review and update as needed.**

## Describe the bug

**Command Name**
`az aks get-credentials`

**Errors:**
```
az: error: unrecognized arguments: Corporate
```
```
Failed to merge credentials to kube config file: unacceptable character #x0000: special characters are not allowed
in "C:\Users\username\.kube\config", position 3
The command failed with an unexpected error. Here is the traceback:
```
- _Put any pre-requisite steps here..._
- `az aks get-credentials -g {} -n {} --subscription {} {}`

## Expected Behavior

## Environment Summary
```
Windows-10-10.0.19041-SP0
Python 3.6.8
Installer: MSI

azure-cli 2.10.1

Extensions:
azure-iot 0.10.8

```
## Additional Context

Start with the `az aks get-credentials` command and reproduce the failure on the listed Windows 10, MSI-installed Azure CLI environment. Inspect how credentials are merged into `C:\Users\username\.kube\config`, including the reported `Corporate` argument and NUL-character error. Done means the command merges the managed AKS credentials without either reported error.

Written by the indexing model from the issue text.