I can't recommend disabling it, because LKDTM is used to test the kernel
hardening features.

But I cant recommend enabling it, because LKDTM contains intentional
memory corruption errors. It's not for production systems.

So let's simply drop the comment about LKDTM.

#68

Use the presence check for slab_nomerge.
Also check that slab_merge is not set.

Reusing "is not set" for CmdlineCheck is a nice hack.

Nice!

populate_with_data() must be called after all checks have been added.

Thanks to the coverage info

And also test the tool without "-l".

This is the feature for #46.