It appears that every man page for ipset-translate on the internet and Tumbleweed has an extra "s"

the line:

ipset-translate restores < file.ipt        fails with help suggestion

ipset-translate restore < file.ipt          correct runs with output

The man page in Tumbleweed is below - the correct syntax is from this web page

https://wiki.nftables.org/wiki-nftables/index.php/Moving_from_ipset_to_nftables

This is not in Leap 15.3 yet - would make life easier to convert from iptables to nftables if it did.

ipset-translate - Man Page

translation tool to migrate from ipset to nftables

Description

This tool allows system administrators to translate a given IP sets file to nftables(8).

The only available command is:

Usage

The ipset-translate tool reads an IP sets file in the syntax produced by ipset(8) save. No set modifications occur, this tool is a text converter.