comment rewrite
comment rewrite

fengshao0907/emqttd,fsxchen/emqttd,sureddy/emqttd,gxbllm/emqttd,wwezhuimeng/emqtt,santuoshi/emqttd,guidao/emqttd,neviim/emqttd,wwezhuimeng/emqtt,yangchaogit/emqttd,tempbottle/emqttd,jfjalburquerque/emqttd,codertrack/emqttd,mickelfeng/emqttd,janshahid/jmq,kimiscircle/emqttd,kimiscircle/emqttd,joaohf/emqttd,Inner-room/emqttd,shaominghaoo/emqttd,yocome/emqttd,lianghaivv/emqttd,kimiscircle/emqttd,wwezhuimeng/emqtt,AcmHacker/emqttd,yanyanqin/emqttd