...only when running under minimal/do, of course.
The tests in question mostly fail because they're testing particular
dependency-related behaviour, and minimal/do doesn't support dependencies,
so naturally it doesn't work.
Now 'redo test' runs the tests, but 'redo t' just builds the programs.
Also removed wvtest stuff; we're not really using it properly anyway and
it's not helping our testing right now. It might come back later.