[Wien] small ambiguity in new UG

[Stefaan Cottenier]

In sec. 4.5.8 at the top of page 50, it reads:

"cp case.in0 case.in0_grr and change indxc to 50"

It is not clear from this sentence whether the change has to be made in
case.in0 or case.in0_grr (in the latter, it turns out, as the 
alternative leads to an immediate crash, for luck).

A more precise sentence would be:

"cp case.in0 case.in0_grr and change indxc in case.in0_grr to 50"

Otherwise, a nice new version, this 10.1 -- installs fine, runs fine.

Stefaan