Arguments of matches which can be used multiple times, are no longer
if not required.
Fixed a bug, where  was eventually called with a negative index.
Fixed a typo with --return-nomatch.
Don't allow option compltion if -R is used and 'rulenum' was not entered after the chain name.
If -p is used and a match with the same name is known, load its options.
Don't display builtin chains with -j|-g.
No more option completion after -R.