tests: Improve name of seccomp notify test
tests: Improve name of seccomp notify test

There was a typo and instead of "empty" we should have used "non-empty".

Let's add a small sentence explaining the intent (like other tests in
this file) and let's highlight what we expect to happen in this test (to
ignore the listenerPath).

Fixes: #3415

Signed-off-by: Rodrigo Campos <bb3b134c0de694d292b7a74d884a6e8009c3eb22@microsoft.com>

kolyshkin/runc,kolyshkin/runc,kolyshkin/runc,opencontainers/runc,opencontainers/runc,opencontainers/runc,opencontainers/runc,kolyshkin/runc