Added support for tar.xz to untar command
Added support for tar.xz to untar command

a2o/puppet-modules-a2o-essential,a2o/puppet-modules-a2o-essential,a2o/puppet-modules-a2o-essential,a2o/puppet-modules-a2o-essential,a2o/puppet-modules-a2o-essential,a2o/puppet-modules-a2o-essential