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

[Cyril Hrubis]

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.

-- 
Cyril Hrubis
chrubis@suse.cz