"zdtm.py run -a" doesn't work on Alpine:
find: unrecognized: -executable

So run zdtm/static/env00 for now to be sure that
it is not broken at all.

travis-ci: success for travis: execute tests on Alpine
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>