fix license name to follow http://spdx.org/licenses/ conventions
fix license name to follow http://spdx.org/licenses/ conventions

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