Generate 416 errors correctly.
Generate 416 errors correctly.

Thanks to Ken Brazier.

darcs-hash:20081204203156-4cc09-27e3b8063dfeaebbbc5561f72ce27490129e19fb.gz

lkraider/polipo,strongwillow/polipo,clowwindy/polipo,nxtreaming/chumen,strongwillow/polipo,danchr/polipo,galeksandrp/polipo,feijilei/polipo,jeromelebel/polipo,dxq-git/polipo,galeksandrp/polipo,lkraider/polipo,TierraDelFuego/opilop,lkraider/polipo,galeksandrp/polipo,feijilei/polipo,dxq-git/polipo,ajmgh/polipo,jech/polipo,berkley4/polipo,dxq-git/polipo,berkley4/polipo,ssb22/polipo2,akkakks/polipo,toke/polipo,jech/polipo,fqtools/polipo,feijilei/polipo,jech/polipo,akkakks/polipo,Android-Apps/polipo,akkakks/polipo,fukusaka/polipo,ssb22/polipo2,Android-Apps/polipo,gorakhargosh/polipo,doublec/namecoin-polipo,fqtools/polipo,nxtreaming/chumen,Psiphon-Inc/polipo,caeies/polipo-caeies,berkley4/polipo,nxtreaming/chumen,ssb22/polipo2,fqtools/polipo