[cs631apue] ls test

[Jan Schaumann]

Hello,

I've just updated the script to test your ls(1) commands a bit, so that
you can use it while you're developing to ensure you're covering some
of the edge cases we talked about.

You can get the script here:
https://www.cs.stevens.edu/~jschauma/631/ls-test

It's intended to be run on your NetBSD development platform and assumes
that you can run su(8) to assume super user privileges.

You can add additional test cases as you see fit, but hopefully this
will get you started.

-Jan