Tue Oct 15 13:44:20 EDT 2002

steenbre.mod:  to accord with new use of = in param declarations,
make the following change:
22c22,23
< param cost {(i,j) in ROADS} = cost[j,i], >= 0;
---
> param cost {(i,j) in ROADS} >= 0;
> check {(i,j) in ROADS: i < j}: cost[i,j] = cost[j,i];
