camptocamp/puppet-couchdb — pull request #17 by mcanevet (2014-02-19 17:15:53+00:00)
Title: Fix couchdblookup on puppet3

http://docs.puppetlabs.com/guides/custom_functions.html

```
lookupvar returns:

nil (in Puppet 3.x)
:undefined (in Puppet 2.7)
```