Multiple CI failures:

```
1) Ohai::System FreeBSD cpu plugin detects all CPU flags
     Failure/Error: @plugin.extend(SimpleFromFile)
     NameError:
       uninitialized constant RSpec::Core::ExampleGroup::Nested_33::SimpleFromFile
     # ./spec/unit/plugins/freebsd/cpu_spec.rb:25:in `block (2 levels) in <top (required)>'
```