【修改】删除多余\n，修复返回值永远是发布成功的bug

src/onenet_http.c

@@ -263,7 +263,7 @@ static rt_err_t response_register_handlers(const unsigned char *rec_buf, const s
 
     assert(rec_buf);
 
-    log_d("response is %.*s\n", length, rec_buf);
+    log_d("response is %.*s", length, rec_buf);
 
     root = cJSON_Parse((char *)rec_buf);
     if (!root)

src/onenet_mqtt.c

@@ -348,7 +348,7 @@ __exit:
         ONENET_FREE(send_buffer);
     }
 
-    return 0;
+    return result;
 }
 
 static rt_err_t onenet_mqtt_get_string_data(const char *ds_name, const char *str, char **out_buff, size_t *length)
@@ -446,7 +446,7 @@ __exit:
         ONENET_FREE(send_buffer);
     }
 
-    return 0;
+    return result;
 }
 
 /**