puppetlabs/puppetlabs-stdlib — pull request #315 by WhatsARanjit (2014-09-04 00:13:30+00:00)
Title: Minusignment

We have the ability to do "plusignment" using the a reference and an "+>" operator, but we can't yet do the converse- the "minusignment" operator. It might be confusing to use "->" because this is a dependency chaining symbol. The use case does not come up enough, but it does. In the meantime, a function might be useful.