Fix log prefix display inconsistency

Author: icloudnote

pkg/taskrun/taskrun.go

@@ -90,7 +90,7 @@ func SortTasksBySpecOrder(pipelineTasks []v1.PipelineTask, pipelinesTaskRuns map
 		if n, ok := trNames[ts.Name]; ok {
 			trStatusFields := pipelinesTaskRuns[n].Status.TaskRunStatusFields
 			trs = append(trs, Run{
-				Task:           ts.Name,
+				Task:           taskName(ts),
 				Name:           n,
 				Retries:        ts.Retries,
 				StartTime:      trStatusFields.StartTime,
@@ -101,3 +101,10 @@ func SortTasksBySpecOrder(pipelineTasks []v1.PipelineTask, pipelinesTaskRuns map
 	sort.Sort(trs)
 	return trs
 }
+
+func taskName(task v1.PipelineTask) string {
+	if task.DisplayName != "" {
+		return task.DisplayName
+	}
+	return task.Name
+}