only load rc file if it's actually present
only load rc file if it's actually present

mmalchuk/puppetlabs-mongodb,discovery-digital/puppetlabs-mongodb,discovery-digital/puppetlabs-mongodb,discovery-digital/puppetlabs-mongodb,noris-network/puppetlabs-mongodb,noris-network/puppetlabs-mongodb,mmalchuk/puppetlabs-mongodb,noris-network/puppetlabs-mongodb,mmalchuk/puppetlabs-mongodb,discovery-digital/puppetlabs-mongodb