Turning TESTS on by default

[Julio Merino]

On Sun, Jun 8, 2014 at 1:50 PM, Warren Block <wblock at wonkity.com> wrote:
> How much of an impact does the test suite have in terms of disk space
> (probably not much)

It clocks at 11MB now on amd64.

> and buildworld time (possibly not much, either)?

Haven't measured. Note, though, that the majority of the existing
tests are shell-scripts so they do not take any build time.