puppetlabs/firewall does not know or handle --physdev-is-bridged properly

As Firewall does not know how to handle or parse the --physdev-is-bridged switch from iptables-save.

Error: Could not prefetch firewall provider 'iptables': Invalid address from IPAddr.new: vif18.0

This can be fixed by adding the flag to @resource_map in "lib/puppet/provider/firewall/iptables.rb" and then adding the line:

values = values.gsub(/--physdev-is-bridged/, '--physdev-is-bridged ""')

to the section commented as `PRE-PARSE CLUDGING`.