Comment 5 for bug 190913

My last comment is not quite correct. GPLv2+ code can be used directly in GPLv3 code.
You don't have to convert anything. Conversion comes into play if you want to use GPLv2+
code in LGPLv3+ code. In this case you have to convert the LGPLv3+ code to GPLv3.
Read more about this in the license compatibility matrix at:
http://www.fsf.org/licensing/licenses/gpl-faq.html#AllCompatibility

But my main point remains true. The "+" options are necessary.