$params::package_downcase undefined when not using Debian/Redhat.

[rostetter]

Expected Behavior

variable should be defined

Actual Behavior

variable is undefined

Steps to Reproduce the Problem

1. Run the module on any system that is not Debian/Redhat osfamily

Specifications

Please add this info:

1. Output of facter -p on the failing node (at least the OS related facts)
2. Version of Puppet and of the module
3. The relevant Puppet code and eventually Hiera data