Fixes a potential corruption with uninitialized stack memory in the
seccomp BPF sample program.

[akpm@linux-foundation.org: coding-style fixlet]
Signed-off-by: NKees Cook <keescook@chromium.org>
Reported-by: NRobert Swiecki <swiecki@google.com>
Tested-by: NRobert Swiecki <swiecki@google.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>