polredabs()

[Igor Schein <igor@txc.com>]

Hi,

after I've gotten burned with my previous message, I'll be a bit
cautios calling this one a bug.  But please judge for yourself:

? t2norm(x^4-x-1)
%13 = 4.276475609680439616479500351
? t2norm(polredabs(x^4-x-1))
%14 = 4.345048321046443827557722074

I think though it is a 2.0.12-introduced bug, because
in 2.0.11 polredabs(x^4-x-1) would return itself, rather than
x^4-x^3-1, like 2.0.12 does.  

Thanks

Igor