message: Fix sed command on MacOS.
diff: @@ -184,7 +184,7 @@ function prepare_src() {
  # _sys.modules[__name__] as the argument of a function -- the last line in
  # the deprecation autogenerated pattern)
  # TODO(mihaimaruseac): When we move the API to root, remove this hack
  - sed -i \
  + sed -i "" \
  "/_deprecation_wrapper$/,/_sys.modules[__name__],/ d" \
  "${TMPDIR}/tensorflow_core/__init__.py"
  }
  