[LTP] [PATCH 1/1] setxattr03: define _GNU_SOURCE to fix build on musl

[Petr Vorel]

Hi Cyril, Jan,

> Hi!
> > musl defines loff_t in <fcntl.h> (already included) and guard it under _GNU_SOURCE.
> > NOTE: glibc and others define it in <sys/types.h>

> I would say that this is obvious enough to go in without a review, acked
> nevertheless.

Thanks for review, pushed.
Sorry for taking your time with obvious fix, next time I'll push it.

Kind regards,
Petr