Only set fanout if we need to (fanout flag set or multiple threads)
Only set fanout if we need to (fanout flag set or multiple threads)

gconnell/stenographer,nbareil/stenographer,dcode/stenographer,dcode/stenographer,gconnell/stenographer,gconnell/stenographer,google/stenographer,nbareil/stenographer,dcode/stenographer,google/stenographer,nbareil/stenographer,google/stenographer