message: Fix a comment to be clearer.
diff: @@ -23,7 +23,10 @@ limitations under the License.
  #include "tensorflow/core/platform/logging.h"
  namespace tensorflow {
  -// This is a set data structure that provides a stable iteration order.
  +// This is a set data structure that provides a deterministic iteration order.
  +// The iteration order of elements only depends on the sequence of
  +// inserts/deletes, so as long as the inserts/deletes happen in the same
  +// sequence, the set will have the same iteration order.
  //
  // Assumes that T can be cheaply copied for simplicity.
  template <typename T>
  