But as I said on r112983 I asked for clarification and he replied that we can use it as desired... What should I do? Tell him that he *must* specify a license? :)
The usual story as for image licenses: To write that explicitly on his website or to send an email to permissions-en@wikimedia.org that explicitly says that it is free for use, distribution and modification. "Public domain", "OFL" or "GPL" are fine, too. He should CC me so i will handle it quickly. Sorry about the bureaucracy...