Minor update to joinbysnapshot cmd response msg
Minor update to joinbysnapshot cmd response msg

Signed-off-by: Wenjian Qiao <fbf86d6cd233bdbceabc4ea6babf7646bde6007b@gmail.com>

jimthematrix/fabric,jimthematrix/fabric,manish-sethi/fabric-sidedb,stemlending/fabric,manish-sethi/fabric-sidedb,stemlending/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,stemlending/fabric,manish-sethi/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric,manish-sethi/fabric-sidedb,hyperledger/fabric,hyperledger/fabric,stemlending/fabric