[ts-gen] limits in risk.rb

[R P Herrold]

On Tue, 2 Sep 2008, Nils Gebhardt wrote:

>> My first reaction has to be a 'radix point' (decimal point)

> actually I have set it to the same value (also
> LC_NUMERIC="en_US.UTF-8"). TWS itself displays numbers with a dot as
> well.

so much for wild *ss guesses  ;)