message: fix ubuntu sanity build failures (line-too-long)
  fix ubuntu sanity build failures (line-too-long)
diff: @@ -32,7 +32,8 @@ class Adam(optimizer_v2.OptimizerV2):
  """Optimizer that implements the Adam algorithm.
  Adam optimization is a stochastic gradient descent method that is based on
  - adaptive estimation of first-order and second-order moments. According to the paper
  + adaptive estimation of first-order and second-order moments.
  + According to the paper
  [Adam: A Method for Stochastic Optimization. Kingma et al., 2014](http://arxiv.org/abs/1412.6980),
  the method is "*computationally efficient, has little memory
  requirement, invariant to diagonal rescaling of gradients, and is well suited
  