[Bug ada/65102] gnat-style.texi warning from including fdl.texi

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65102

--- Comment #3 from vries at gcc dot gnu.org ---
(In reply to vries from comment #2)
> requested approval for fdl.texi part from docs co-maintainer:
> https://gcc.gnu.org/ml/gcc-patches/2015-03/msg01056.html

Posted updated patch: https://gcc.gnu.org/ml/gcc-patches/2015-06/msg00975.html