Adding checkStyle changes that I missed before for Thing42Test

I thought I did Thing42Test.java with my scan and fixing for checkStyle. But when I did a list-minute double-check of the assignment, I found numerous violations. So I fixed them with this PR.

@Kimmsudenver @stevilstick @moquin101 have all verified that, like me, they haven't yet turned in the assignment.

If @ericvangelder @SterL @JamieWohletz can verify that they have also not yet turned it in, then we should merge this, update our local code, and hand in this fixed version. If any one of you guys has already turned in the assignment, then I suggest that we all hand in the same copy of the code (prior to my fixes in this PR).

So please review, but I'd say wait until we hear from the rest of the group verifying this is safe to merge.


P.S. I removed the main method for Thing42Test because it is unnecessary and the checkStyle was telling me I needed javadocs for it.