darcs patch: FIX #1378 Add option for a shorter banner on GHCi startup

[Chris Smith]

Stefan O'Rear wrote:
> My 2 cents:
>
> I'd like to see the banner removed completely, or at least moved to a
> higher verbosity level.
>
> Users who need help or version are presumably know about --help and
> --version; they aren't exactly GHC-specific!

GHCi is the only executable thing (i.e., not just a document) that gets 
added to the start menu when someone downloads and installs GHC for Windows. 
If it were changed so that they just see "Prelude>" when they click on it, 
I'm afraid it would make Haskell seem quite unfriendly indeed!

-- 
Chris Smith