Tweak whoami string for MpInitiator
Tweak whoami string for MpInitiator

Don't print out for partition -1.

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