[LTP] [PATCH 1/2] syscalls/getppid01: Convert to the new API

[Cyril Hrubis]

Hi!
Pushed with minor changes, thanks.

- fixed the documentation comment

- fixed the SPDX license, the original code was GPL-2.0 only and we
  can't change that unless the test is a complete rewrite

-- 
Cyril Hrubis
chrubis@suse.cz