sparse_hessian.sh: further simplify.
sparse_hessian.sh: further simplify.

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