Update puppetlabs.pp

Because "puppet-common : Depends: ruby-rgen (>= 0.6.5) but it is not installable" on wheezy need to add the "dependancies" repository.

ref: https://github.com/puppetlabs/puppet/pull/1596
http://projects.puppetlabs.com/issues/20914
Update puppetlabs.pp

missed space
Merge pull request #6 from openquery/master

add "dependancies" to puppetlabs