message: Modify Mac builds to use TensorFlow 1.12.0 for builds
diff: @@ -223,7 +223,7 @@ if [ -z "${tf_dir}" ] ; then
  # If installing into the OS, use:
  # sudo --preserve-env --set-home pip install --ignore-installed ${PIP_INSTALL_EXTRA_ARGS:-} "${WHEEL_FILE}"
  # Here we are installing into a virtual environment, so DO NOT USE SUDO!!!
  - pip install -U tensorflow==1.12.0rc2
  + pip install -U tensorflow==1.12.0
  set +x
  else
  