trace: part 2 of allow parentSpan warn to be ignored
trace: part 2 of allow parentSpan warn to be ignored

Zirpon/tchannel,bunnyblue/tchannel,benfleis/tchannel,Zirpon/tchannel,benfleis/tchannel,chenwenbin928/tchannel,bunnyblue/tchannel,sasa233/tchannel,RyanTech/tchannel,Zirpon/tchannel,sasa233/tchannel,hustxiaoc/tchannel,hustxiaoc/tchannel,bunnyblue/tchannel,hustxiaoc/tchannel,sasa233/tchannel,RyanTech/tchannel,savaki/tchannel,chenwenbin928/tchannel,vanloswang/tchannel,savaki/tchannel,benfleis/tchannel,RyanTech/tchannel,i/tchannel,i/tchannel,i/tchannel,chenwenbin928/tchannel,vanloswang/tchannel,vanloswang/tchannel,savaki/tchannel