anchor.diff:      chatzilla
       cksfv
       coreutils
  +    cpio
       darcs
       db4
       diffutils
  
positive.code:     grub
      gzip
      hello
      jakartaregexp
      jetty
      jikes
  
negative.code:     docbook_xml_dtd_42
      docbook_xml_dtd_43
      docbook_xml_xslt
      e2fsprogs
      ecj
      emacs
      enscript
  