(#10274) Document Util::Firewall.host_to_ip
(#10274) Document Util::Firewall.host_to_ip

Document the current behaviour of Util::Firewall.host_to_ip before it is
modified to handle addresses with zero prefix lengths.

ianand0204/puppetlabs-firewall,jaakkosipari/puppetlabs-firewall,puppetlabs/puppetlabs-firewall