Fix condition in dir.targets
Fix condition in dir.targets

The value passed to Exists() should be enclosed in single quotes according to https://msdn.microsoft.com/en-us/library/7szfhaft.aspx

shimingsg/corefx,shmao/corefx,brett25/corefx,shmao/corefx,vs-team/corefx,ravimeda/corefx,nbarbettini/corefx,kkurni/corefx,erpframework/corefx,alphonsekurian/corefx,alexperovich/corefx,Petermarcu/corefx,MaggieTsang/corefx,mellinoe/corefx,alexandrnikitin/corefx,claudelee/corefx,wtgodbe/corefx,dtrebbien/corefx,cartermp/corefx,jhendrixMSFT/corefx,Jiayili1/corefx,Chrisboh/corefx,yizhang82/corefx,ellismg/corefx,dotnet-bot/corefx,gkhanna79/corefx,akivafr123/corefx,shmao/corefx,ptoonen/corefx,Jiayili1/corefx,Ermiar/corefx,akivafr123/corefx,billwert/corefx,mokchhya/corefx,mokchhya/corefx,MaggieTsang/corefx,rubo/corefx,billwert/corefx,zhenlan/corefx,Petermarcu/corefx,janhenke/corefx,jcme/corefx,anjumrizwi/corefx,mazong1123/corefx,andyhebear/corefx,Petermarcu/corefx,manu-silicon/corefx,SGuyGe/corefx,richlander/corefx,rjxby/corefx,stone-li/corefx,manu-silicon/corefx,chaitrakeshav/corefx,Jiayili1/corefx,nchikanov/corefx,seanshpark/corefx,mmitche/corefx,adamralph/corefx,CherryCxldn/corefx,anjumrizwi/corefx,rubo/corefx,Jiayili1/corefx,stone-li/corefx,krytarowski/corefx,CloudLens/corefx,gkhanna79/corefx,rahku/corefx,oceanho/corefx,seanshpark/corefx,benjamin-bader/corefx,larsbj1988/corefx,gregg-miskelly/corefx,axelheer/corefx,lydonchandra/corefx,YoupHulsebos/corefx,rjxby/corefx,lggomez/corefx,benpye/corefx,vrassouli/corefx,bpschoch/corefx,josguil/corefx,shana/corefx,stone-li/corefx,jmhardison/corefx,mmitche/corefx,krk/corefx,tstringer/corefx,jlin177/corefx,cydhaselton/corefx,krytarowski/corefx,josguil/corefx,wtgodbe/corefx,Frank125/corefx,mmitche/corefx,claudelee/corefx,cydhaselton/corefx,elijah6/corefx,jcme/corefx,shiftkey-tester/corefx,wtgodbe/corefx,marksmeltzer/corefx,spoiledsport/corefx,dtrebbien/corefx,kkurni/corefx,misterzik/corefx,adamralph/corefx,huanjie/corefx,khdang/corefx,dotnet-bot/corefx,thiagodin/corefx,Ermiar/corefx,YoupHulsebos/corefx,SGuyGe/corefx,parjong/corefx,vrassouli/corefx,nbarbettini/corefx,stephenmichaelf/corefx,billwert/corefx,matthubin/corefx,tstringer/corefx,rjxby/corefx,elijah6/corefx,tijoytom/corefx,iamjasonp/corefx,alexperovich/corefx,billwert/corefx,rajansingh10/corefx,viniciustaveira/corefx,ericstj/corefx,bitcrazed/corefx,matthubin/corefx,spoiledsport/corefx,popolan1986/corefx,ViktorHofer/corefx,kkurni/corefx,josguil/corefx,seanshpark/corefx,shmao/corefx,krytarowski/corefx,Petermarcu/corefx,the-dwyer/corefx,misterzik/corefx,parjong/corefx,jlin177/corefx,uhaciogullari/corefx,rubo/corefx,elijah6/corefx,janhenke/corefx,ptoonen/corefx,twsouthwick/corefx,iamjasonp/corefx,cydhaselton/corefx,zhenlan/corefx,pallavit/corefx,cnbin/corefx,comdiv/corefx,viniciustaveira/corefx,fernando-rodriguez/corefx,iamjasonp/corefx,KrisLee/corefx,the-dwyer/corefx,dhoehna/corefx,Ermiar/corefx,the-dwyer/corefx,dsplaisted/corefx,axelheer/corefx,mellinoe/corefx,rahku/corefx,dtrebbien/corefx,claudelee/corefx,ellismg/corefx,alphonsekurian/corefx,popolan1986/corefx,fernando-rodriguez/corefx,shahid-pk/corefx,xuweixuwei/corefx,zmaruo/corefx,iamjasonp/corefx,richlander/corefx,arronei/corefx,nchikanov/corefx,mafiya69/corefx,dhoehna/corefx,stormleoxia/corefx,n1ghtmare/corefx,Yanjing123/corefx,cydhaselton/corefx,vidhya-bv/corefx-sorting,Yanjing123/corefx,josguil/corefx,mokchhya/corefx,nbarbettini/corefx,heXelium/corefx,pallavit/corefx,tstringer/corefx,xuweixuwei/corefx,jmhardison/corefx,alphonsekurian/corefx,690486439/corefx,jlin177/corefx,VPashkov/corefx,ravimeda/corefx,Jiayili1/corefx,tstringer/corefx,n1ghtmare/corefx,wtgodbe/corefx,EverlessDrop41/corefx,690486439/corefx,s0ne0me/corefx,mellinoe/corefx,weltkante/corefx,ericstj/corefx,matthubin/corefx,uhaciogullari/corefx,marksmeltzer/corefx,Priya91/corefx-1,kkurni/corefx,dhoehna/corefx,alexperovich/corefx,ravimeda/corefx,andyhebear/corefx,ravimeda/corefx,zhangwenquan/corefx,CherryCxldn/corefx,iamjasonp/corefx,zhenlan/corefx,MaggieTsang/corefx,dotnet-bot/corefx,fgreinacher/corefx,richlander/corefx,zhenlan/corefx,Chrisboh/corefx,lydonchandra/corefx,zmaruo/corefx,CloudLens/corefx,andyhebear/corefx,Alcaro/corefx,JosephTremoulet/corefx,vs-team/corefx,pgavlin/corefx,kyulee1/corefx,alexandrnikitin/corefx,shiftkey-tester/corefx,stormleoxia/corefx,seanshpark/corefx,nelsonsar/corefx,Priya91/corefx-1,mafiya69/corefx,larsbj1988/corefx,shana/corefx,nbarbettini/corefx,ellismg/corefx,huanjie/corefx,shana/corefx,thiagodin/corefx,huanjie/corefx,axelheer/corefx,claudelee/corefx,fgreinacher/corefx,twsouthwick/corefx,YoupHulsebos/corefx,oceanho/corefx,tijoytom/corefx,weltkante/corefx,jlin177/corefx,zhangwenquan/corefx,rjxby/corefx,shimingsg/corefx,YoupHulsebos/corefx,YoupHulsebos/corefx,mafiya69/corefx,benjamin-bader/corefx,pgavlin/corefx,cartermp/corefx,the-dwyer/corefx,lggomez/corefx,rahku/corefx,nbarbettini/corefx,alphonsekurian/corefx,mokchhya/corefx,axelheer/corefx,manu-silicon/corefx,alexperovich/corefx,uhaciogullari/corefx,marksmeltzer/corefx,JosephTremoulet/corefx,MaggieTsang/corefx,kkurni/corefx,DnlHarvey/corefx,Petermarcu/corefx,ericstj/corefx,elijah6/corefx,tstringer/corefx,chenxizhang/corefx,rjxby/corefx,krk/corefx,viniciustaveira/corefx,ravimeda/corefx,ellismg/corefx,gkhanna79/corefx,tijoytom/corefx,nelsonsar/corefx,zmaruo/corefx,ellismg/corefx,jmhardison/corefx,bitcrazed/corefx,jlin177/corefx,rahku/corefx,khdang/corefx,kkurni/corefx,brett25/corefx,chenkennt/corefx,josguil/corefx,shrutigarg/corefx,mazong1123/corefx,stephenmichaelf/corefx,tstringer/corefx,SGuyGe/corefx,DnlHarvey/corefx,mazong1123/corefx,krk/corefx,chenkennt/corefx,alphonsekurian/corefx,Chrisboh/corefx,dkorolev/corefx,oceanho/corefx,Priya91/corefx-1,janhenke/corefx,alexperovich/corefx,brett25/corefx,stormleoxia/corefx,vidhya-bv/corefx-sorting,Winsto/corefx,cartermp/corefx,shrutigarg/corefx,axelheer/corefx,jhendrixMSFT/corefx,yizhang82/corefx,jeremymeng/corefx,xuweixuwei/corefx,destinyclown/corefx,PatrickMcDonald/corefx,KrisLee/corefx,zhenlan/corefx,JosephTremoulet/corefx,cnbin/corefx,yizhang82/corefx,rahku/corefx,mellinoe/corefx,shiftkey-tester/corefx,vs-team/corefx,kyulee1/corefx,the-dwyer/corefx,PatrickMcDonald/corefx,huanjie/corefx,mellinoe/corefx,mellinoe/corefx,krk/corefx,kyulee1/corefx,gkhanna79/corefx,zhangwenquan/corefx,ericstj/corefx,DnlHarvey/corefx,Priya91/corefx-1,benpye/corefx,heXelium/corefx,tijoytom/corefx,Ermiar/corefx,chaitrakeshav/corefx,Alcaro/corefx,shahid-pk/corefx,dsplaisted/corefx,richlander/corefx,twsouthwick/corefx,tijoytom/corefx,popolan1986/corefx,Winsto/corefx,EverlessDrop41/corefx,weltkante/corefx,Priya91/corefx-1,cnbin/corefx,mokchhya/corefx,weltkante/corefx,iamjasonp/corefx,yizhang82/corefx,DnlHarvey/corefx,dsplaisted/corefx,stone-li/corefx,jhendrixMSFT/corefx,gabrielPeart/corefx,dkorolev/corefx,misterzik/corefx,cydhaselton/corefx,elijah6/corefx,Ermiar/corefx,stone-li/corefx,stephenmichaelf/corefx,pallavit/corefx,lggomez/corefx,s0ne0me/corefx,Ermiar/corefx,marksmeltzer/corefx,khdang/corefx,ptoonen/corefx,benpye/corefx,jcme/corefx,heXelium/corefx,destinyclown/corefx,scott156/corefx,alexperovich/corefx,fffej/corefx,lggomez/corefx,BrennanConroy/corefx,shimingsg/corefx,mafiya69/corefx,zhenlan/corefx,EverlessDrop41/corefx,iamjasonp/corefx,nelsonsar/corefx,arronei/corefx,dhoehna/corefx,pgavlin/corefx,dotnet-bot/corefx,lggomez/corefx,wtgodbe/corefx,s0ne0me/corefx,vijaykota/corefx,richlander/corefx,dkorolev/corefx,seanshpark/corefx,mmitche/corefx,krytarowski/corefx,marksmeltzer/corefx,scott156/corefx,krk/corefx,ViktorHofer/corefx,690486439/corefx,arronei/corefx,alexandrnikitin/corefx,fgreinacher/corefx,VPashkov/corefx,vijaykota/corefx,parjong/corefx,dotnet-bot/corefx,scott156/corefx,mazong1123/corefx,seanshpark/corefx,billwert/corefx,cartermp/corefx,krk/corefx,Alcaro/corefx,destinyclown/corefx,alexperovich/corefx,nchikanov/corefx,jhendrixMSFT/corefx,tijoytom/corefx,rjxby/corefx,richlander/corefx,jmhardison/corefx,Frank125/corefx,dotnet-bot/corefx,shimingsg/corefx,shimingsg/corefx,SGuyGe/corefx,yizhang82/corefx,erpframework/corefx,ericstj/corefx,billwert/corefx,chaitrakeshav/corefx,Yanjing123/corefx,lydonchandra/corefx,jlin177/corefx,stephenmichaelf/corefx,KrisLee/corefx,khdang/corefx,erpframework/corefx,alphonsekurian/corefx,mazong1123/corefx,twsouthwick/corefx,andyhebear/corefx,tijoytom/corefx,gregg-miskelly/corefx,fernando-rodriguez/corefx,ravimeda/corefx,Jiayili1/corefx,vs-team/corefx,gkhanna79/corefx,chenxizhang/corefx,gabrielPeart/corefx,ptoonen/corefx,Chrisboh/corefx,vrassouli/corefx,fffej/corefx,manu-silicon/corefx,uhaciogullari/corefx,cydhaselton/corefx,alexandrnikitin/corefx,zhenlan/corefx,khdang/corefx,PatrickMcDonald/corefx,stephenmichaelf/corefx,parjong/corefx,shimingsg/corefx,bitcrazed/corefx,nchikanov/corefx,akivafr123/corefx,dhoehna/corefx,shahid-pk/corefx,larsbj1988/corefx,brett25/corefx,shahid-pk/corefx,shimingsg/corefx,DnlHarvey/corefx,nchikanov/corefx,lggomez/corefx,Frank125/corefx,parjong/corefx,marksmeltzer/corefx,spoiledsport/corefx,alphonsekurian/corefx,JosephTremoulet/corefx,bpschoch/corefx,stephenmichaelf/corefx,janhenke/corefx,stone-li/corefx,benjamin-bader/corefx,Ermiar/corefx,PatrickMcDonald/corefx,twsouthwick/corefx,rajansingh10/corefx,elijah6/corefx,heXelium/corefx,cartermp/corefx,vidhya-bv/corefx-sorting,mmitche/corefx,fgreinacher/corefx,vijaykota/corefx,twsouthwick/corefx,krytarowski/corefx,SGuyGe/corefx,nelsonsar/corefx,BrennanConroy/corefx,zmaruo/corefx,ViktorHofer/corefx,viniciustaveira/corefx,gabrielPeart/corefx,rubo/corefx,chenxizhang/corefx,stephenmichaelf/corefx,benjamin-bader/corefx,dtrebbien/corefx,jcme/corefx,wtgodbe/corefx,KrisLee/corefx,ericstj/corefx,ericstj/corefx,axelheer/corefx,VPashkov/corefx,thiagodin/corefx,yizhang82/corefx,manu-silicon/corefx,shrutigarg/corefx,chaitrakeshav/corefx,adamralph/corefx,zhangwenquan/corefx,ellismg/corefx,benpye/corefx,jcme/corefx,Priya91/corefx-1,rahku/corefx,VPashkov/corefx,nbarbettini/corefx,jeremymeng/corefx,MaggieTsang/corefx,matthubin/corefx,akivafr123/corefx,richlander/corefx,nchikanov/corefx,pallavit/corefx,bitcrazed/corefx,dkorolev/corefx,Chrisboh/corefx,scott156/corefx,mazong1123/corefx,twsouthwick/corefx,pallavit/corefx,seanshpark/corefx,CherryCxldn/corefx,cydhaselton/corefx,pallavit/corefx,ViktorHofer/corefx,Frank125/corefx,Petermarcu/corefx,marksmeltzer/corefx,MaggieTsang/corefx,ptoonen/corefx,manu-silicon/corefx,khdang/corefx,akivafr123/corefx,Yanjing123/corefx,nchikanov/corefx,shmao/corefx,erpframework/corefx,shahid-pk/corefx,chenkennt/corefx,ptoonen/corefx,rajansingh10/corefx,billwert/corefx,benpye/corefx,Chrisboh/corefx,lggomez/corefx,wtgodbe/corefx,josguil/corefx,the-dwyer/corefx,mmitche/corefx,vidhya-bv/corefx-sorting,Yanjing123/corefx,ViktorHofer/corefx,jeremymeng/corefx,vidhya-bv/corefx-sorting,yizhang82/corefx,manu-silicon/corefx,jlin177/corefx,janhenke/corefx,ptoonen/corefx,cnbin/corefx,dhoehna/corefx,dotnet-bot/corefx,JosephTremoulet/corefx,oceanho/corefx,parjong/corefx,stormleoxia/corefx,comdiv/corefx,MaggieTsang/corefx,bitcrazed/corefx,fffej/corefx,YoupHulsebos/corefx,690486439/corefx,comdiv/corefx,pgavlin/corefx,Jiayili1/corefx,kyulee1/corefx,JosephTremoulet/corefx,Petermarcu/corefx,cartermp/corefx,ViktorHofer/corefx,jeremymeng/corefx,janhenke/corefx,dhoehna/corefx,parjong/corefx,jcme/corefx,fffej/corefx,elijah6/corefx,mokchhya/corefx,Winsto/corefx,Alcaro/corefx,690486439/corefx,vrassouli/corefx,shmao/corefx,CloudLens/corefx,alexandrnikitin/corefx,rjxby/corefx,n1ghtmare/corefx,s0ne0me/corefx,anjumrizwi/corefx,lydonchandra/corefx,ravimeda/corefx,benjamin-bader/corefx,comdiv/corefx,mafiya69/corefx,DnlHarvey/corefx,CloudLens/corefx,the-dwyer/corefx,gabrielPeart/corefx,krytarowski/corefx,DnlHarvey/corefx,benpye/corefx,krk/corefx,n1ghtmare/corefx,weltkante/corefx,weltkante/corefx,gkhanna79/corefx,JosephTremoulet/corefx,shiftkey-tester/corefx,jeremymeng/corefx,bpschoch/corefx,rahku/corefx,shrutigarg/corefx,shana/corefx,YoupHulsebos/corefx,n1ghtmare/corefx,BrennanConroy/corefx,SGuyGe/corefx,jhendrixMSFT/corefx,mafiya69/corefx,gregg-miskelly/corefx,benjamin-bader/corefx,thiagodin/corefx,mazong1123/corefx,jhendrixMSFT/corefx,ViktorHofer/corefx,larsbj1988/corefx,stone-li/corefx,nbarbettini/corefx,anjumrizwi/corefx,gregg-miskelly/corefx,krytarowski/corefx,jhendrixMSFT/corefx,shahid-pk/corefx,bpschoch/corefx,rajansingh10/corefx,rubo/corefx,CherryCxldn/corefx,mmitche/corefx,PatrickMcDonald/corefx,shmao/corefx,gkhanna79/corefx,weltkante/corefx