add logfile parameter test
add logfile parameter test

rdo-puppet-modules/puppetlabs-ntp,puppetlabs/puppetlabs-ntp,fuel-infra/puppetlabs-ntp,bmjen/puppetlabs-ntp,HelenCampbell/puppetlabs-ntp,plumgrid/puppetlabs-ntp,powertoaster/puppetlabs-ntp,DavidS/puppetlabs-ntp,rdo-puppet-modules/puppetlabs-ntp,plumgrid/puppetlabs-ntp,powertoaster/puppetlabs-ntp,HelenCampbell/puppetlabs-ntp