isLocked improvement.

- Rewrote the method, there was some confusion between regex matches being found and regex matches being true, what was needed was a simple OR. 
- Added test, so if we get more use cases we can easily add them.
- Cleaned up the dumpsys log part.

That's more helpful, but re
```
 // if the method is not working, turn it on and send us the output
```
What is `the method`?  I'm not trying to be dense, but since we're already checked for an error in the `this.shell` cb, it's not clear what the `method` is you're referring to.