fix a typo
fix a typo

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