Include the numeric error code in ``Unknown error'' messages.
Include the numeric error code in ``Unknown error'' messages.

darcs-hash:20061119025040-4cc09-6493901c6480f936fed14f97a50023dccdefe6bc.gz

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