(maint) puppetdb-ssl-setup returns 1 with legacy setup

This fixes acceptance test failures that were bombing out due to
puppetdb-ssl-setup return an exit code of 1 when legacy setup was in place.

Signed-off-by: Ken Barber <ken@bob.sh>
Merge pull request #591 from kbarber/maint/tests-puppetdb-ssl-setup-returns-1

(maint) puppetdb-ssl-setup returns 1 with legacy setup