License clarification in messagelib

[Christophe Giboudeaux]

Hi again,

On dimanche 28 juin 2020 09:50:21 CEST Thomas McGuire wrote:
> 
> Yes, I'm ok with you making these changes. Thanks for cleaning up the
> license situation and converting to SPDX.
> 
Done for messagelib. The same issue popped when converting the akonadi-mime 
repository.
src/metatype.h is LGPL-2.0-only or LGPL-3.0-only but mentions the GPL proxy 
clause.

Can I also proceed?

Thanks
Christophe