[libvirt] [patch 0/5] nwfilter: Support comment attribute in filter rule descriptions

The following patch series adds support for a comment node to the XML attributes of all protocols. If possible, as for example in case of iptables, the comments are instantiated (iptables ... -m comment --comment ...). The patches do the following: - extend the parser and XML generator to parse and create XML with the comment attribute - instantiate the comment in case of ip(6)tables - extend the nwfilter.rng schema with the comment attribute - add the information to the web docs - add a test case for the XML parser/generator to be run during 'make check' Regards, Stefan