mat_mul.cpp: Change missing from previous commit.
mat_mul.cpp: Change missing from previous commit.

git-svn-id: 1fa6af86edfeec7ff6813d32c2912156c4cfc87f@2804 0e562018-b8fb-0310-a933-ecf073c7c197

tkelman/CppAD-oldmirror,tkelman/CppAD-oldmirror,tkelman/CppAD-oldmirror,tkelman/CppAD-oldmirror