message: add missing CircleOcticon.propTypes
diff: @@ -22,6 +22,8 @@ CircleOcticon.defaultProps = {
  CircleOcticon.propTypes = {
  ...Octicon.propTypes,
  + bg: PropTypes.string,
  + color: PropTypes.string,
  // FIXME: we should be able to infer the size from the
  // rendered Octicon so that we can support
  // size={'small|medium|large'}
  