unsetenv

On Thu, Jun 18, 2020 at 11:11:11AM -0400, al davis wrote:
> The library can have features that are not used in default
> plugins.  How do we test them?
> 
> For now, I will accept "itested" on this one, if you want, so it can be
> merged.

done.

> Programs and plugins in tests are feasible.

it's in the commit message for now. needs some scripting to fix it in
general, let's do it once we have an interesting case.

cheers
felix