Fix permission on MySQL plugin file
Fix permission on MySQL plugin file

This change modifies the permissions on the MySQL plugin configuration
file to avoid making it readable by everybody.

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