patch applied (ghc): properly fix leakage of Haddock comment syntax (see #1091, test: read044)

[Simon Marlow]

Mon May  7 04:37:01 PDT 2007  Simon Marlow <simonmar at microsoft.com>
  * properly fix leakage of Haddock comment syntax (see #1091, test: read044)

    M ./compiler/parser/Lexer.x -16 +9