Update language in config test developer docs for Ansible 2+ change
Update language in config test developer docs for Ansible 2+ change

micahflee/securedrop,conorsch/securedrop,heartsucker/securedrop,micahflee/securedrop,heartsucker/securedrop,heartsucker/securedrop,heartsucker/securedrop,conorsch/securedrop,ehartsuyker/securedrop,garrettr/securedrop,ehartsuyker/securedrop,garrettr/securedrop,conorsch/securedrop,conorsch/securedrop,micahflee/securedrop,ehartsuyker/securedrop,conorsch/securedrop,heartsucker/securedrop,ehartsuyker/securedrop,garrettr/securedrop,garrettr/securedrop,ehartsuyker/securedrop,ehartsuyker/securedrop,micahflee/securedrop