discoverd/client: put mutexes behind unexported member
discoverd/client: put mutexes behind unexported member

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