Fix issues with non-zero-terminated URLs in urlIsMatched.
Fix issues with non-zero-terminated URLs in urlIsMatched.

Thanks to phuel.

darcs-hash:20071001032906-4cc09-c8858ba40ac3f3833bf43a73c49c6e458897be44.gz

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