Upstream appears to have changed their versioning scheme. Instead of
being tied to LSDK date-based versions, restool is versioned
independently.
There are no tags or releases following the new versioning scheme, so
update the package to take the most recent commit (27 Oct 2021). This
also matches the revision that Fedora has packaged as version 2.4.
The ls-main script uses `which`. It also has /bin/sh as its shebang,
which means bash runs in Bourne-compatible mode and `which` is not a
builtin.
When the ls-* scripts are invoked from a user shell you don't notice
the problem, because /run/current-system/sw/bin/which is on $PATH, but
when they are invoked in a systemd service it would fail:
.../bin/ls-addni: line 1054: which: command not found
