selftests/seccomp: Check ENOSYS under tracing

There should be no difference between -1 and other negative syscalls
while tracing.

Cc: Keno Fischer <keno@juliacomputing.com>
Tested-by: Will Deacon <will@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
1 file changed