On Mon, Apr 06, 2009 at 12:58:08PM +0200, Andreas Ericsson wrote:

How about:
"Some projects (notably the Linux kernel and git itself) put special
meaning in a 'Signed-off-by' line while other's dont. Please refer
to your project's documentation for appropriate behaviour."

I think that is fine, with some typo fixups:

  s/other's/others/
  s/dont/don't/

And of course being American, I would spell it behavior. :)

Optionally with the following amendment:

"In general, you should refrain from signing off on a patch containing
material that you're not sure can be legally spread under the project's
license."

I don't think that makes sense. That is what signing-off is about for
the kernel and for git, but I don't think there is any reason another
project might not want to use the convenient signoff options to mean
something totally unrelated (like we use Acked-by).

-Peff