[Improvement] Add missing placeholder (#13663)

* Add missing placeholder

* Update dolphinscheduler-task-plugin/dolphinscheduler-task-api/src/main/java/org/apache/dolphinscheduler/plugin/task/api/am/KubernetesApplicationManager.java

Co-authored-by: kezhenxu94 <kezhenxu94@apache.org>

---------

Co-authored-by: kezhenxu94 <kezhenxu94@apache.org>

dolphinscheduler-task-plugin/dolphinscheduler-task-api/src/main/java/org/apache/dolphinscheduler/plugin/task/api/am/KubernetesApplicationManager.java

@@ -190,7 +190,7 @@ public class KubernetesApplicationManager implements ApplicationManager {
                 return logs;
             }
         } catch (Exception e) {
-            log.error("Collect pod log failed:", e.getMessage());
+            log.error("Collect pod log failed", e);
         }
         return "";
     }