CentOS 6 3.8 is broken

[Poil]

This merge broke compatibility with CentOS 6 and Puppet 3.8
ce1460c

Error: Could not autoload puppet/provider/package/npm: /var/lib/puppet/lib/puppet/provider/package/npm.rb:3: syntax error, unexpected ':', expecting $end
...package).provide :npm, parent: Puppet::Provider::Package do
                              ^
Error: Could not retrieve local facts: Could not autoload puppet/provider/package/npm: /var/lib/puppet/lib/puppet/provider/package/npm.rb:3: syntax error, unexpected ':', expecting $end
...package).provide :npm, parent: Puppet::Provider::Package do
                              ^
Error: Failed to apply catalog: Could not retrieve local facts: Could not autoload puppet/provider/package/npm: /var/lib/puppet/lib/puppet/provider/package/npm.rb:3: syntax error, unexpected ':', expecting $end
...package).provide :npm, parent: Puppet::Provider::Package do