new_release.sh: fix message about conf directory.
new_release.sh: fix message about conf directory.

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