Request for suggestions of DFSG-free documentation licences

[Shriramana Sharma <samjnaa@gmail.com>]

Hello list.

I remember reading that the GFDL is not DFSG-free (due to some clauses 
regarding invariant sections or something) so I would like to know what 
is a DFSG-free license for documentation, since a project I am working 
on wants to license its documentation in a DFSG-free way.

Thanks.

Shriramana Sharma.