I'm packaging "Golly", a cellular automata program, and Jason Tibbitts pointed out that while Golly uses a GPLv2+ license, that an included library of patterns uses a different license:

This lexicon is copyright © Stephen Silver, 1997-2005. It may be freely copied and/or modified as long as due credit is given. This includes not just credit to those who have contributed in some way to the present version (see above), but also credit to those who have made any modifications.

This license looks to me to be even less restrictive than a 2-clause BSD license. Is this license acceptable for files in a Fedora package? And if so, what should I call it in the License tag?

The package review bug is: https://bugzilla.redhat.com/show_bug.cgi?id=590355

Thanks! Eric