cleanup error return on sliverstatus
cleanup error return on sliverstatus

ahelsing/geni-tools,GENI-NSF/gram,tcmitchell/geni-tools,plantigrade/geni-tools,GENI-NSF/gram,ahelsing/geni-tools,plantigrade/geni-tools,GENI-NSF/gram,tcmitchell/geni-tools