patch applied (haskell-prime-report): fix line-comment syntax to not consider ' --:' as a comment

[Simon Marlow]

Tue Nov  7 08:22:46 PST 2006  Simon Marlow <simonmar at microsoft.com>
  * fix line-comment syntax to not consider '--:' as a comment
  See LineCommentSyntax on the wiki, ticket #42
  

    M ./report/syntax-lexical.verb -1 +1