fix `iptables' and `ip6tables' invocation
fix `iptables' and `ip6tables' invocation

- action must be specfied after table, not before

Closes-bug: #1349484
Change-Id: I386b15ded4641d38b557574c0c88c1bc9d72bf4e

slystopad/fuel-lib,stackforge/fuel-library,eayunstack/fuel-library,zhaochao/fuel-library,xarses/fuel-library,slystopad/fuel-lib,huntxu/fuel-library,SmartInfrastructures/fuel-library-dev,Metaswitch/fuel-library,huntxu/fuel-library,huntxu/fuel-library,eayunstack/fuel-library,Metaswitch/fuel-library,eayunstack/fuel-library,eayunstack/fuel-library,Metaswitch/fuel-library,zhaochao/fuel-library,ddepaoli3/fuel-library-dev,xarses/fuel-library,ddepaoli3/fuel-library-dev,SmartInfrastructures/fuel-library-dev,slystopad/fuel-lib,SmartInfrastructures/fuel-library-dev,xarses/fuel-library,huntxu/fuel-library,zhaochao/fuel-library,eayunstack/fuel-library,stackforge/fuel-library,Metaswitch/fuel-library,ddepaoli3/fuel-library-dev,stackforge/fuel-library,ddepaoli3/fuel-library-dev,zhaochao/fuel-library,xarses/fuel-library,stackforge/fuel-library,zhaochao/fuel-library,huntxu/fuel-library,slystopad/fuel-lib,SmartInfrastructures/fuel-library-dev,ddepaoli3/fuel-library-dev,SmartInfrastructures/fuel-library-dev