Clean up HAVE_FORK tests in local.c.
Clean up HAVE_FORK tests in local.c.

darcs-hash:20060607203107-4cc09-c5f3fa0de92f4e32fe25d42b2413c8909affae66.gz

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