[LTP] [PATCH] fs/read_all: Clear suplementary groups before droping privileges

[Cyril Hrubis]

Hi!
> LGTM!

We may as well think about safe groups for the program, looking at my
/dev/ it may sense to add auxiliary groups disk and tty so that we tests
these devices as well.

-- 
Cyril Hrubis
chrubis@suse.cz