Close log file after script executed

xxl-job-core/src/main/java/com/xxl/job/core/util/ScriptUtil.java

@@ -59,7 +59,7 @@ public class ScriptUtil {
         // 标准输出：print （null if watchdog timeout）
         // 错误输出：logging + 异常 （still exists if watchdog timeout）
         // 标准输入
-        FileOutputStream fileOutputStream = new FileOutputStream(logFile, true);
+        try (FileOutputStream fileOutputStream = new FileOutputStream(logFile, true)) {
             PumpStreamHandler streamHandler = new PumpStreamHandler(fileOutputStream, fileOutputStream, null);
 
             // command
@@ -76,5 +76,6 @@ public class ScriptUtil {
             int exitValue = exec.execute(commandline);  // exit code: 0=success, 1=error
             return exitValue;
         }
+    }
 
 }