use restrict everywhere it's required by c99 and/or posix 2008

[musl] / src / process / posix_spawnattr_getsigdefault.c

#include <spawn.h>

int posix_spawnattr_getsigdefault(const posix_spawnattr_t *restrict attr, sigset_t *restrict def)
{
        *def = attr->__def;
        return 0;
}