fix issue in isClusterKSafe in LeaderAppointer
fix issue in isClusterKSafe in LeaderAppointer

ingted/voltdb,zuowang/voltdb,paulmartel/voltdb,creative-quant/voltdb,migue/voltdb,ingted/voltdb,creative-quant/voltdb,flybird119/voltdb,deerwalk/voltdb,kumarrus/voltdb,paulmartel/voltdb,ingted/voltdb,kumarrus/voltdb,VoltDB/voltdb,creative-quant/voltdb,wolffcm/voltdb,paulmartel/voltdb,kumarrus/voltdb,kumarrus/voltdb,creative-quant/voltdb,wolffcm/voltdb,migue/voltdb,zuowang/voltdb,VoltDB/voltdb,wolffcm/voltdb,zuowang/voltdb,deerwalk/voltdb,kumarrus/voltdb,migue/voltdb,deerwalk/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,creative-quant/voltdb,zuowang/voltdb,deerwalk/voltdb,VoltDB/voltdb,creative-quant/voltdb,flybird119/voltdb,zuowang/voltdb,wolffcm/voltdb,deerwalk/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,migue/voltdb,kumarrus/voltdb,VoltDB/voltdb,migue/voltdb,ingted/voltdb,wolffcm/voltdb,ingted/voltdb,VoltDB/voltdb,VoltDB/voltdb,deerwalk/voltdb,migue/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,flybird119/voltdb,flybird119/voltdb,paulmartel/voltdb,flybird119/voltdb,flybird119/voltdb,deerwalk/voltdb,wolffcm/voltdb,zuowang/voltdb,simonzhangsm/voltdb,ingted/voltdb,deerwalk/voltdb,migue/voltdb,VoltDB/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,creative-quant/voltdb,kumarrus/voltdb,ingted/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,flybird119/voltdb,zuowang/voltdb,simonzhangsm/voltdb,wolffcm/voltdb,paulmartel/voltdb,migue/voltdb,flybird119/voltdb,zuowang/voltdb,creative-quant/voltdb,wolffcm/voltdb,ingted/voltdb