!1716 FIX：优化数据丢失问题

Merge pull request !1716 from cheng_jinsong/0119

services/param/adapter/param_persistadp.c

@@ -108,6 +108,8 @@ static void BatchSavePersistParamEnd(PERSIST_SAVE_HANDLE handle)
 {
     int ret;
     FILE *fp = (FILE *)handle;
+    (void)fflush(fp);
+    (void)fsync(fileno(fp));
     (void)fclose(fp);
     if (InUpdaterMode() == 0) {
         unlink(PARAM_PERSIST_SAVE_PATH);