message: Update op_hint.py
diff: @@ -234,7 +234,7 @@ class OpHint(object):
  and OpHint.AGGREGATE_STACK.
  Note, aggregate is only valid if tag is specified.
  index_override: Specify what input/output index should this be in the
  - final stub. i.e. add(arg0, index=1); add(arg1, index=0) wil make the
  + final stub. i.e. add(arg0, index=1); add(arg1, index=0) will make the
  final stub be as stub_func(inputs[arg1, arg0], outputs=[]) rather than
  the default call order based ordering.
  