message: Add a comment to the integration test
diff: @@ -244,6 +244,8 @@ done
  NEW_NODE_ID=${NEW_NODE_ID:-"6"}
  SYNC_TIMEOUT_SEC=${SYNC_TIMEOUT_SEC:-"300"}
  ACTIVATE_ERA=${ACTIVATE_ERA:-"5"}
  +# The default protocol version should be at least 1.3.0 because of this test being used to test the
  +# compatibility of the new block hashing scheme with upgrades.
  PROTOCOL_VERSION=${PROTOCOL_VERSION:-"2_0_0"}
  main
  