discoverd/client: Use ioutil.TempDir for test etcd data
discoverd/client: Use ioutil.TempDir for test etcd data

Signed-off-by: Jonathan Rudenberg <3692bfa45759a67d83aedf0045f6cb635a966abf@titanous.com>

TribeMedia/flynn,josephglanville/flynn,GrimDerp/flynn,supermario/flynn,Brandywine2161/flynn,ozum/flynn,whouses/flynn,shads196770/flynn,lmars/flynn,GrimDerp/flynn,tonicbupt/flynn,philiplb/flynn,flynn/flynn,rikur/flynn,pkdevbox/flynn,lmars/flynn,whouses/flynn,supermario/flynn,arekkas/flynn,clifff/flynn,technosophos/flynn,ozum/flynn,GrimDerp/flynn,Brandywine2161/flynn,whouses/flynn,mubassirhayat/flynn,clifff/flynn,kgrz/flynn,technosophos/flynn,justintung/flynn,jzila/flynn,pkdevbox/flynn,Brandywine2161/flynn,technosophos/flynn,kgrz/flynn,josephglanville/flynn,benbjohnson/flynn,clifff/flynn,felixrieseberg/flynn,justintung/flynn,kgrz/flynn,arekkas/flynn,supermario/flynn,technosophos/flynn,arekkas/flynn,supermario/flynn,schatt/flynn,TribeMedia/flynn,GrimDerp/flynn,Brandywine2161/flynn,mubassirhayat/flynn,justintung/flynn,ozum/flynn,schatt/flynn,shads196770/flynn,tonicbupt/flynn,schatt/flynn,schatt/flynn,clifff/flynn,philiplb/flynn,ozum/flynn,benbjohnson/flynn,flynn/flynn,benbjohnson/flynn,josephglanville/flynn,lmars/flynn,rikur/flynn,philiplb/flynn,shads196770/flynn,shads196770/flynn,felixrieseberg/flynn,felixrieseberg/flynn,shads196770/flynn,benbjohnson/flynn,shads196770/flynn,Brandywine2161/flynn,jzila/flynn,rikur/flynn,mubassirhayat/flynn,kgrz/flynn,jzila/flynn,josephglanville/flynn,flynn/flynn,benbjohnson/flynn,GrimDerp/flynn,whouses/flynn,justintung/flynn,schatt/flynn,jzila/flynn,josephglanville/flynn,jzila/flynn,ozum/flynn,shutej/flynn,philiplb/flynn,justintung/flynn,TribeMedia/flynn,pkdevbox/flynn,ozum/flynn,tonicbupt/flynn,TribeMedia/flynn,rikur/flynn,pkdevbox/flynn,tonicbupt/flynn,lmars/flynn,justintung/flynn,rikur/flynn,clifff/flynn,arekkas/flynn,clifff/flynn,felixrieseberg/flynn,flynn/flynn,technosophos/flynn,flynn/flynn,supermario/flynn,benbjohnson/flynn,Brandywine2161/flynn,lmars/flynn,pkdevbox/flynn,josephglanville/flynn,GrimDerp/flynn,tonicbupt/flynn,TribeMedia/flynn,kgrz/flynn,pkdevbox/flynn,schatt/flynn,whouses/flynn,rikur/flynn,jzila/flynn,TribeMedia/flynn,arekkas/flynn,philiplb/flynn,supermario/flynn,felixrieseberg/flynn,whouses/flynn,kgrz/flynn,mubassirhayat/flynn