puppetlabs/puppetlabs-apt — pull request #63 by rskvazh (2012-05-24 09:48:33+00:00)
Title: Pin source with originator. Useful for pinning Launchpad PPA

If you need to pin certain Launchpad PPA (ppa:rskvazh/php), you may do:
apt::pin { 'my-launchpad-repo':
priority => 700,
originator =>'LP-PPA-rskvazh-php',
}