message: Fix typo in error message in tf.config.set_virtual_device_configuration
diff: @@ -1240,7 +1240,7 @@ class Context(object):
  for vdev in virtual_devices:
  if vdev.memory_limit is None:
  raise ValueError(
  - "Setting memory limit is required for GPU virtual devices is")
  + "Setting memory limit is required for GPU virtual devices")
  else:
  raise ValueError("Virtual devices are not supported for %s" %
  dev.device_type())
  