Fixed iptables on non-RedHat systems

1aa4044a8a, among other things, made a change that results in "local
variable 'out' referenced before assignment" on all non-RedHat systems
that attempt to add an iptables rule. I don't understand the reason for
the change; most likely it was an error. Changing it back.
Missing commas in salt.state.STATE_INTERNAL_KEYWORDS
Merge pull request #8348 from aptiko/nonrh-iptables

Fix some errors in iptables