Further improve tests to spew things when they fail.

esp: Avoid crappy subtests that give no context.
v0.002003

 [Dependencies::Stats]
 - Dependencies changed since 0.002002, see misc/*.deps* for details
 - configure: (recommends: ↑1)
 - develop: (suggests: ↑1)
 - test: +1 (recommends: ↑1)

 [Tests]
 - Further improve tests to spew things when they fail, esp: Avoid crappy subtests that give no context.
post-release cleanup