message: Small (literally) typo in description.
diff: @@ -207,7 +207,7 @@ class GraphDefBuilderWrapper {
  // recursively adds all functions it references. If a function with a matching
  // name has already been added, returns with OK status. If a user-defined with
  // name `function_name` is not found in the FunctionLibraryDefinition, returns
  - // and InvalidArgumentError. If the function with name `function_name` or any
  + // an InvalidArgumentError. If the function with name `function_name` or any
  // of its dependent functions are stateful, returns an InvalidArgument error.
  Status AddFunction(OpKernelContext* ctx, const string& function_name) {
  if (b_->HasFunction(function_name)) {
  