sparse_hessian.sh: simplify example.
sparse_hessian.sh: simplify example.

wegamekinglc/CppAD,kaskr/CppAD,wegamekinglc/CppAD,wegamekinglc/CppAD,kaskr/CppAD,kaskr/CppAD,kaskr/CppAD,wegamekinglc/CppAD,wegamekinglc/CppAD,kaskr/CppAD