[cvs-nhc98] patch applied (cpphs): new option --strip-c89 does not strip eol // comments

[Malcolm Wallace]

Fri Sep 14 08:27:56 PDT 2007  Malcolm.Wallace at cs.york.ac.uk
  * new option --strip-c89 does not strip eol // comments

    M ./Language/Preprocessor/Cpphs/MacroPass.hs -4 +5
    M ./Language/Preprocessor/Cpphs/Options.hs -3 +8
    M ./Language/Preprocessor/Cpphs/Tokenise.hs -21 +25
    M ./cpphs.hs -5 +6