Updated based on deprecated syntax in ipset

On my machine (`ipset v6.12.1, protocol version: 6`) ipset still supports but no longer uses the syntax -R, -W, etc. I've updated the tool to use the new syntax.
updated to remove deprecated syntax
update to remove deprecated syntax
updated to remove deprecated ipset syntax
Merge pull request #2 from mynamewastaken/master

Updated the deprecated ipset syntax