[LTP] [PATCH 1/3 v2] syscalls/chown: Rewrite chown/chown02.c with the new api

[Cyril Hrubis]

Hi!
Pushed with minor changes, thanks.

* I've updated the documentation comment a bit
* Moved the chmod() to the run() function so that the test
  changes back the modified permissions with -i parameter

-- 
Cyril Hrubis
chrubis@suse.cz