[Patch, Fortran] OOP cleanup part 2

[Janus Weil]

> I still do not fully like the handling of CLASS

Any suggestions how to improve it?


> but I think the patch
> is still an improvement and thus OK for check in.
>
> Nit: You miss a space after CLASS_DATA, e.g.

Fixed this and committed as r160060. Thanks for the review.

Cheers,
Janus