But there is a difference between the GPL-required text: ... And the GFDL-required text:
They are different, but neither of them is really short, so I think the practical consequences are more or less the same. [ Page 12 is the "front cover" of the GFDL'd subwork, so has just the words "A GNU Manual"] (Page 13 is the same as page 12 above) I don't undertand this. Why have page 13 duplicating page 12? Anyway, this is not required for on-line use, only for printed copies, which have covers anyway. Likewise page 19.