Update MESA_handle_logger.c, 每次fprintf成功后fflush句柄

src/MESA_handle_logger.c

@@ -212,6 +212,10 @@ void MESA_handle_runtime_log(void *handle, int level, const char *module, const
         fclose(p_handle->fp);
         p_handle->fp = NULL;
     }
+    else
+    {
+        fflush(p_handle->fp);
+    }
     return;
 }