Update comments for etcdtest/client.go
Update comments for etcdtest/client.go

cvrabie/confd,Fitbit/confd,philipsoutham/confd,agilemobiledev/confd,kgrvamsi/confd,crandles/confd,say5/confd,tomdee/confd,bacongobbler/confd,glerchundi/confd,deis/confd,blippar/confd,fritzy/confd,cloudnautique/confd,layerhq/confd,kgrvamsi/confd,mboersma/confd,glerchundi/renderizr,Lineberty/confd,kelseyhightower/confd,blippar/confd,gautamk/confd,Flipkart/confd,shencan/confd,RichardKnop/confd,layerhq/confd,axingblog/confd,deis/confd,alexnauda/confd,danesparza/confd,linearregression/confd,Fitbit/confd,jnummelin/confd,Lineberty/confd,fritzy/confd,crunchywelch/confd,israelchen/confd,beni55/confd,danesparza/confd,cvrabie/confd,karthequian/confd,say5/confd,okushchenko/confd,zytek/confd,openedbox/confd,PrFalken/confd,RichardKnop/confd,monder/confd,rancher/confd,agilemobiledev/confd,aledbf/confd,chendh521/confd,axingblog/confd,okushchenko/confd,alexnauda/confd,karthequian/confd,gautamk/confd,Ropes/confd,aledbf/confd,glerchundi/renderizr,elbidigital/confd,cloudnautique/confd,PrFalken/confd,beni55/confd,nevermosby/confd,israelchen/confd,tomdee/confd,chendh521/confd,elsonrodriguez/confd,shencan/confd,kelseyhightower/confd,crandles/confd,openedbox/confd,mboersma/confd,Flipkart/confd,philipsoutham/confd,zytek/confd,elsonrodriguez/confd,Ropes/confd,monder/confd,bacongobbler/confd,linearregression/confd,elbidigital/confd,crunchywelch/confd,glerchundi/confd,rancher/confd,Flipkart/confd,jnummelin/confd,nevermosby/confd