[cvsnt] Update trouble with extra checkouts

[Tony Hoyle]

Gerhard Fiedler wrote:
> <P:\1\2>21>cvs -n up

That's your problem - the only -n option that's supported is -n co (for 
ls support for older clients).  Others may work by accident (although 
I'm not sure what use -n status is for example but haven't done so 
properly for years (for example even in cvs 1.10 cvs -n up would modify 
the sandbox).

Tony