small doc fix

[Matthias Andree]

On Thu, 03 Oct 2002, Clint Adams wrote:

> I think this better describes -v's behavior.

> +input. Each additional <option>v</option> will increase the verbosity of
> +the output, up to a maximum of 4.  With <option>-vv</option>, the report
> +lists the tokens with highest deviation from a mean of 0.5 association
> +with spam.</para>

Merged, thanks.

-- 
Matthias Andree