fix potential memory leak with time.After
fix potential memory leak with time.After

gaowenbin/nsq,kevinc0825/nsq,jehiah/nsq,19hz/nsq,CrazyJvm/nsq,coderhaoxin/nsq,chaosue/nsq,chrislusf/nsq,handsomesun/nsq,qinlodestar/nsq,MadBomber/nsq,mreiferson/nsq,menghan/nsq,msn217/nsq,kesutton/nsq,JustinAzoff/nsq,ShinichR/nsq,svmehta/nsq,CrazyJvm/nsq,mashuai/nsq,coderhaoxin/nsq,sparklxb/nsq,absolute8511/nsq,gaowenbin/nsq,propellerads/nsq,davegardnerisme/nsq,mashuai/nsq,bo406/nsq,w3hacker/nsq,bo406/nsq,ShinichR/nsq,msn217/nsq,19hz/nsq,dinedal/nsq,beni55/nsq,OlafRadicke/nsq,fbjork/nsq,sparklxb/nsq,szqh97/nsq,judwhite/nsq-0.3.2-win,lcp0578/nsq,jmptrader/nsq,judwhite/nsq-0.3.2-win,bitly/nsq,dmarkham/nsq,shanemhansen/nsq,magastzheng/nsq,w4ngyi/nsq,youxidev/nsq,datastream/nsq,mikeqian/nsq,xuzhaokui/nsq,chaosue/nsq,handsomesun/nsq,magastzheng/nsq,xiexingguang/nsq,jmptrader/nsq,coderhaoxin/nsq,CrazyJvm/nsq,nsqio/nsq,mreiferson/nsq,JustinAzoff/nsq,qinlodestar/nsq,xuzhaokui/nsq,qinlodestar/nsq,seanluo/nsq_with_note,rpau/nsq,nsqio/nsq,chrisroberts/nsq,ShinichR/nsq,MadBomber/nsq,wuxu92/nsq,gaowenbin/nsq,kesutton/nsq,19hz/nsq,philipbo/nsq,chrisroberts/nsq,davegardnerisme/nsq,ploxiln/nsq,wuxu92/nsq,jmptrader/nsq,bo406/nsq,jlr52/nsq,menghan/nsq,mashuai/nsq,sunminghong/nsq,mikeqian/nsq,rpau/nsq,OlafRadicke/nsq,nsqio/nsq,chaosue/nsq,nieanan/nsq,propellerads/nsq,jlr52/nsq,qinlodestar/nsq,bitly/nsq,sparklxb/nsq,elubow/nsq,mikedewar/nsq,fbjork/nsq,coderhaoxin/nsq,wmydz1/nsq,chrislusf/nsq,qinlodestar/nsq,nimmen/nsq,philipbo/nsq,mynameisfiber/nsq,elubow/nsq,mikeqian/nsq,dustismo/nsq,wmydz1/nsq,w3hacker/nsq,absolute8511/nsq,mreiferson/nsq,handsomesun/nsq,philipbo/nsq,mashuai/nsq,ShinichR/nsq,jlr52/nsq,nimmen/nsq,lcp0578/nsq,judwhite/nsq-0.3.2-win,lytics/nsq,kesutton/nsq,beni55/nsq,dmarkham/nsq,jlr52/nsq,mashuai/nsq,ploxiln/nsq,myhongkongzhen/nsq,mroth/nsq,nieanan/nsq,moander/nsq,nsqio/nsq,ploxiln/nsq,kesutton/nsq,mikedewar/nsq,lcp0578/nsq,datastream/nsq,absolute8511/nsq,szqh97/nsq,danielhfrank/nsq,sparklxb/nsq,lcp0578/nsq,wmydz1/nsq,jsocol/nsq,szqh97/nsq,yh453926638/nsq,msn217/nsq,pombredanne/nsq,rpau/nsq,xuzhaokui/nsq,gaowenbin/nsq,OlafRadicke/nsq,wuxu92/nsq,beni55/nsq,absolute8511/nsq,sunminghong/nsq,MadBomber/nsq,beni55/nsq,philipbo/nsq,mynameisfiber/nsq,mikedewar/nsq,msn217/nsq,dinedal/nsq,bitly/nsq,rpau/nsq,gaowenbin/nsq,ploxiln/nsq,dustismo/nsq,sparklxb/nsq,coderhaoxin/nsq,nsqio/nsq,kevinc0825/nsq,jehiah/nsq,jehiah/nsq,xiexingguang/nsq,youxidev/nsq,davegardnerisme/nsq,handsomesun/nsq,MadBomber/nsq,bitly/nsq,jehiah/nsq,lcp0578/nsq,myhongkongzhen/nsq,moander/nsq,szqh97/nsq,beni55/nsq,w4ngyi/nsq,bo406/nsq,JustinAzoff/nsq,myhongkongzhen/nsq,CrazyJvm/nsq,w4ngyi/nsq,ploxiln/nsq,jehiah/nsq,bo406/nsq,handsomesun/nsq,Dieterbe/nsq,wmydz1/nsq,pombredanne/nsq,moander/nsq,xiexingguang/nsq,mroth/nsq,myhongkongzhen/nsq,mikeqian/nsq,danielhfrank/nsq,mikeqian/nsq,danielhfrank/nsq,yh453926638/nsq,kevinc0825/nsq,tophymastery/nsq,svmehta/nsq,yh453926638/nsq,Dieterbe/nsq,w4ngyi/nsq,nieanan/nsq,mreiferson/nsq,propellerads/nsq,MadBomber/nsq,ShinichR/nsq,Dieterbe/nsq,lytics/nsq,shanemhansen/nsq,philipbo/nsq,bitly/nsq,chrislusf/nsq,yh453926638/nsq,kesutton/nsq,mreiferson/nsq,wmydz1/nsq,jlr52/nsq,w4ngyi/nsq,magastzheng/nsq,xiexingguang/nsq,seanluo/nsq_with_note,chaosue/nsq,rpau/nsq,Dieterbe/nsq,yh453926638/nsq,xiexingguang/nsq,CrazyJvm/nsq,jsocol/nsq,tophymastery/nsq,Dieterbe/nsq,szqh97/nsq,myhongkongzhen/nsq,absolute8511/nsq,chaosue/nsq,msn217/nsq,youxidev/nsq