[opensuse-packaging] don't understand the new licenses

Hello mates,

i'm trying to build a new packageversion. The old Licenses Field was "GPLv3 or later". If i'm going to: http://license.opensuse.org/ and place GPLv3 there, the Site proposes to use "GPL-3". If i'm placing this into the Licenses Field i become: kvirustotal-lang.noarch: W: invalid-license GPL-3 kvirustotal.x86_64: W: invalid-license GPL-3 kvirustotal.src: W: invalid-license GPL-3 The specified license string is not recognized. Please refer to http://license.opensuse.org/ for the list of known licences and their exact spelling.

But why this false? Does anyone knows more?

Wish all a happy X-Mas Sascha