message: Fix syntax error in sample code
  This would have otherwise caused a non-keyword arg after keyword arg
diff: @@ -81,7 +81,7 @@ more summaries and call the evaluation_loop method:
  # Evaluate every 10 minutes:
  slim.evaluation_loop(
  - master='',
  + '',
  checkpoint_dir,
  logdir,
  num_evals=num_evals,
  