A key named `Comment` breaks the export

## Description

If a INI file with a key `Comment=` is Imported, the key will (erroneously) be marked as a comment line and thus, the export will fail

## Steps To Reproduce

Ini file
```ini
Key=Value
Comment=Lorem
```

script:
```pwsh
Import-Ini file.ini | Export-Ini file.ini
``` 

output ini:
```ini
Key = Value
;Lorem
```

## Expected behaviors

output ini:
```ini
Key = Value
Comment = Lorem
```

