!6386 文档注释格式对齐

Merge pull request !6386 from 罗威/master

zh-cn/device-dev/driver/driver-platform-watchdog-develop.md

@@ -244,7 +244,7 @@ Watchdog模块适配HDF框架的三个环节是配置属性文件，实例化驱
       struct WatchdogCntlr *wdt = NULL;
       struct Hi35xxWatchdog *hwdt = NULL;
       ...
-      wdt = WatchdogCntlrFromDevice(device);// 这里会通过service成员将HdfDeviceObject转化为WatchdogCntlr
+      wdt = WatchdogCntlrFromDevice(device);  // 这里会通过service成员将HdfDeviceObject转化为WatchdogCntlr
                                               // return (device == NULL) ? NULL : (struct WatchdogCntlr *)device->service;
       if (wdt == NULL) {
           return;