[phobos] windows tz updates breaking unit tests, again

[Brad Roberts via phobos]

On 4/14/2016 9:35 AM, Jonathan M Davis via phobos wrote:
>
> If we don't test it, we won't catch when the code is wrong due to a change
> in Microsoft's time zone info. But the fact that it changes so frequently
> like this is precisely why that functionality has been deprecated in favor
> of reading the conversion data in from a file, thereby leaving it up to the
> programmer to make sure that the data is up-to-date. I think that it's quite
> clear that hardcoding it as I did originally has proven to be a bad idea.
> Unfortunately, it'll be a while before those functions are done with the
> deprecation cycle and removed, so we have to continue to deal with
> Microsoft's random changes until then.
>
> - Jonathan M Davis

I agree that it is something that needs to be caught and adapted for, 
but I disagree that it's a unit test that should do that.  As a unit 
test, the impacts are large and disruptive.  As some other tool, it's 
minimal and still actionable.