[LTP] [RFC] 'nobody' user for testing

[Cyril Hrubis]

Hi!
> Short term solution will be Jan's suggestion to write simple "sudo" binary or
> even just let testers to fix the setup (i.e. fix it for us in openQA).

I guess that having a small helper to execute commands as a selected
user would be reasonable. We already have tst_sleep because the sleep
commands in different shells behaves differently.

Adding tst_sudo that would take an user and command to execute does make
sense here I suppose. And I think that the question if we need a
separate user for LTP testing is orthogonal.

-- 
Cyril Hrubis
chrubis@suse.cz