message: fix order in BUILD file (buildifier).
diff: @@ -24,11 +24,11 @@ py_library(
  "python/training/moving_average_optimizer.py",
  "python/training/multitask_optimizer_wrapper.py",
  "python/training/nadam_optimizer.py",
  - "python/training/weight_decay_optimizers.py",
  "python/training/powersign.py",
  "python/training/reg_adagrad_optimizer.py",
  "python/training/sign_decay.py",
  "python/training/variable_clipping_optimizer.py",
  + "python/training/weight_decay_optimizers.py",
  ],
  srcs_version = "PY2AND3",
  deps = [
  