[Bug libstdc++/59406] functions labelled FNV-1a in tr1/functional_hash.h are not FNV-1a

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59406

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
We're not really making any non-critical changes to TR1 code now.