IDL4CPP — Map IDL struct to class?

Why does this example code for "C.2.1.2.4 Naming Data Types" map the IDL struct to a C++ class, that is the alternative mapping, but as far as I understand it the mapping prefers to map a IDL struct to a C++ struct by default

Fix mapping of naming data types in C.2.1.2.4

In clause C.2.1.2.4, IDL struct MyType is mapped to a class, instead of a struct, which is the correct mapping. This issue addresses that mistake.