collectd::plugin::exec::cmd clean up
collectd::plugin::exec::cmd clean up

- Add data types for user and group
- Remove $ensure as it is currently unused
- Remove long deprecated handling of old file path

juniorsysadmin/puppet-collectd,voxpupuli/puppet-collectd,archii/puppet-collectd,juniorsysadmin/puppet-collectd,voxpupuli/puppet-collectd,voxpupuli/puppet-collectd,archii/puppet-collectd,archii/puppet-collectd