postgresql : failing unit test

parameter 'object_name' expects a value of type Undef, Array, or String, got Integer
vs
parameter 'object_name' expects a value of type Array or String, got Integer
4.10 vs 4.7
The unit tests fail because of the change in the error message output.

https://jenkins-master-prod-1.delivery.puppetlabs.net/job/forge-module_puppetlabs-postgresql_unit-module_master/PUPPET_GEM_VERSION=4.7.1,RUBY_VER=ruby-2.3.1,WORKER_LABEL=unit/69/console