understanding -vvv output

[.rp]

using .15.7 ,
I did a bogofilter -vvv < msg.txt

I want to make sure I am interpreting the output correctly.
"head:format"                  6363  0.050000  0.083968  0.626776 -
"quoted-printable"             8169  0.050000  0.107804  0.683152 +

means that the message was considered non-spam until it hit the "quoted-
printable" at which point it became spam.
If this is correct, is there any way to get rid of the "quoted-printable" score 
from wordlist? Can it be done in .9x ?