message: Minor tweaks on logging format and verbosity in process function library runtime.
diff: @@ -843,7 +843,7 @@ Status ProcessFunctionLibraryRuntime::InstantiateMultiDevice(
  auto attrs = AttrSlice(&shard.attr());
  VLOG(1) << "Start instantiating component function " << unique_name
  << " on device " << target;
  - VLOG(2) << DebugString(shard);
  + VLOG(4) << DebugString(shard);
  auto* component_handle = new FunctionLibraryRuntime::Handle;
  auto done = [this, status, unique_name, comp_data, component_handle,
  