go: Fix bench/client calling wrong service.
go: Fix bench/client calling wrong service.

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