修改sheet名

hazard-admin/src/main/java/com/ozs/web/controller/accountmanagment/MsgAlarmController.java

@@ -356,7 +356,7 @@ public class MsgAlarmController extends BaseController {
         try {
             List<AlarmStatisticMonthDto> list = msgAlarmService.exportExcelMonth(alarmStatisticResVo, userId);
             ExcelUtil<AlarmStatisticMonthDto> util = new ExcelUtil<>(AlarmStatisticMonthDto.class);
-            util.exportExcel(response, list, "-报警月统计数据");
+            util.exportExcel(response, list, "报警月统计数据");
         } catch (Exception e) {
             e.printStackTrace();
             log.info(e.getMessage());