Bug 1038125 - Privacy archive page is 500 error

This provides coverage for  when the privacy archive starts to error out.
The method name indicates we are testing a redirect, but the test is only checking for a status code of 200. While it's true that requests to /privacy/archive will get a 301 redirect to /en-US/privacy/archive/ this isn't obvious just from reading the test.  I would suggest that if you are wanting to test the redirect itself, you should probably verify that there was one with something like
```python
Assert.equal(response.history[0].status_code, 301)
Assert.true(response.history[0].headers['location'].endswith('/en-US/privacy/archive/'))
```

Alternatively, if you don't actually care about testing the redirect itself, I'd suggest getting the /en-US/ url directly and removing the ```_redirect``` from the test method name.