robocop style improve, no logic change
robocop style improve, no logic change

yxf/wechat,EndingChaung/wechat,caiqinghua/wechat,TangMonk/wechat,Dearest/wechat-1,JeeLiu/wechat,caiqinghua/wechat,wolflee/wechat-rails,Eric-Guo/wechat,Dearest/wechat-1,caiqinghua/wechat,skinnyworm/wechat-rails,zfben/wechat,Eric-Guo/wechat,wolflee/wechat-rails,Dearest/wechat-1