puppetlabs/puppetlabs-mcollective — pull request #133 by zipkid (2014-03-28 14:17:10+00:00)
Title: Feature: param yaml_fact_filter

There are many more 'dynamic' facts than the fixed list in the template that can cause constant changes to the yaml factsource and thus have nodes constantly reporting as changed.
This filter param allows you to pass an array of regex patterns of fact names to ignore.