ConnectionBase: loosen socket error matching
ConnectionBase: loosen socket error matching

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