Fix mapper to check if the iterator is EOF before calling the map function
Fix mapper to check if the iterator is EOF before calling the map function

bspline/influxdb,michaelsproul/influxdb,lenko-d/influxdb,influxdata/influxdb,imcom/influxdb,linearb/influxdb,GrimDerp/influxdb,ezotrank/influxdb,jgeiger/influxdb,CVTJNII/influxdb-tjnii,Tony133/influxdb,pdf/influxdb,stvnwrgs/influxdb,nooproblem/influxdb,atyenoria/influxdb,m4ce/influxdb,egymgmbh/influxdb,tuxmonteiro/influxdb,cannium/influxdb,DanielMorsing/influxdb,mash0304/influxdb,CVTJNII/influxdb-tjnii,ezotrank/influxdb,m4ce/influxdb,jonseymour/influxdb,samaitra/influxdb,s7v7nislands/influxdb,IMCG/InfluxDB,ASAPPinc/influxdb,apriendeau/influxdb,apigee/influxdb,dneuman64/influxdb,evanphx/influxdb,IMCG/InfluxDB,eminden/influxdb,lenko-d/influxdb,pablolmiranda/influxdb,imcom/influxdb,trigrass2/influxdb,paulstuart/influxdb,jportoles/influxdb092,kingland/influxdb,lenko-d/influxdb,n1tr0g/influxdb,daachi/influxdb,cnelissen/influxdb,josephcopenhaver/influxdb,roobert/influxdb,kingland/influxdb,121watts/influxdb,mark-rushakoff/influxdb,jonseymour/influxdb,linearb/influxdb,s7v7nislands/influxdb,mark-rushakoff/influxdb,otoolep/influxdb,haim0n/influxdb,tommymei/influxdb,otoolep/influxdb,tuxmonteiro/influxdb,toorop/influxdb,kingland/influxdb,jportoles/influxdb092,jgeiger/influxdb,slavau/influxdb,kingland/influxdb,otoolep/influxdb,tommymei/influxdb,paulstuart/influxdb,apriendeau/influxdb,stvnwrgs/influxdb,otoolep/influxdb,mash0304/influxdb,IMCG/InfluxDB,no2key/influxdb,IMCG/InfluxDB,n1tr0g/influxdb,apigee/influxdb,vladlopes/influxdb,daachi/influxdb,nickrobinson/influxdb,cannium/influxdb,slavau/influxdb,slavau/influxdb,ninjasphere/influxdb,archsaber/influxdb,slavau/influxdb,marcosnils/influxdb,CrazyJvm/influxdb,josephcopenhaver/influxdb,dneuman64/influxdb,influxdb/influxdb,timraymond/influxdb,neonstalwart/influxdb,samaitra/influxdb,vladlopes/influxdb,Mindera/influxdb,josephcopenhaver/influxdb,bspline/influxdb,linfangrong/influxdb,nickscript0/influxdb,rnubel/influxdb,lenko-d/influxdb,jipperinbham/influxdb,jipperinbham/influxdb,ASAPPinc/influxdb,fg2it/influxdb,sudabon/influxdb,michaelsproul/influxdb,Ancillas/influxdb,opavader/influxdb,nooproblem/influxdb,DanielMorsing/influxdb,mash0304/influxdb,josephcopenhaver/influxdb,mnuessler/influxdb,mengjinglei/influxdb,brunoqc/influxdb,lgpeterson/influxdb,slachiewicz/influxdb,influxdb/influxdb,mmaul/influxdb,eminden/influxdb,nickscript0/influxdb,bluebreezecf/influxdb,rnubel/influxdb,benbjohnson/influxdb,Tony133/influxdb,Yong-Lee/influxdb,Mindera/influxdb,tommymei/influxdb,nickscript0/influxdb,mengjinglei/influxdb,luciotorre/influxdb,mvadu/influxdb,nickrobinson/influxdb,CVTJNII/influxdb-tjnii,michaelsproul/influxdb,daachi/influxdb,toorop/influxdb,tjyang/influxdb,trigrass2/influxdb,slachiewicz/influxdb,ASAPPinc/influxdb,mengjinglei/influxdb,mre/influxdb,evanphx/influxdb,chenziliang/influxdb,mcanthony/influxdb,no2key/influxdb,haim0n/influxdb,pkittenis/influxdb,121watts/influxdb,Mindera/influxdb,mmaul/influxdb,toorop/influxdb,n1tr0g/influxdb,apigee/influxdb,Venu4thFeb/influxdb,tommymei/influxdb,Sotfo/influxdb,ninjasphere/influxdb,mvadu/influxdb,pablolmiranda/influxdb,marcosnils/influxdb,egymgmbh/influxdb,roobert/influxdb,nickrobinson/influxdb,jonseymour/influxdb,fxstein/influxdb,mcanthony/influxdb,egymgmbh/influxdb,mvadu/influxdb,stvnwrgs/influxdb,nckturner/influxdb,ASAPPinc/influxdb,no2key/influxdb,Venu4thFeb/influxdb,influxdb/influxdb,lgpeterson/influxdb,vladlopes/influxdb,brunoqc/influxdb,neonstalwart/influxdb,brunoqc/influxdb,tjyang/influxdb,cannium/influxdb,brunoqc/influxdb,joaopedrotaveira/influxdb,jipperinbham/influxdb,stvnwrgs/influxdb,cnelissen/influxdb,mcanthony/influxdb,dneuman64/influxdb,DanielMorsing/influxdb,lgpeterson/influxdb,runner-mei/influxdb,timraymond/influxdb,bspline/influxdb,mre/influxdb,archsaber/influxdb,Tony133/influxdb,Venu4thFeb/influxdb,bluebreezecf/influxdb,Sotfo/influxdb,n1tr0g/influxdb,Sotfo/influxdb,benbjohnson/influxdb,n1tr0g/influxdb,mcanthony/influxdb,linearb/influxdb,jgeiger/influxdb,s7v7nislands/influxdb,trigrass2/influxdb,sudabon/influxdb,Yong-Lee/influxdb,no2key/influxdb,fxstein/influxdb,sudabon/influxdb,m4ce/influxdb,Sotfo/influxdb,jipperinbham/influxdb,runcom/influxdb,linearb/influxdb,samaitra/influxdb,nickrobinson/influxdb,runner-mei/influxdb,mark-rushakoff/influxdb,paulstuart/influxdb,opavader/influxdb,brunoqc/influxdb,m4ce/influxdb,pkittenis/influxdb,CrazyJvm/influxdb,alexiri/influxdb,sudabon/influxdb,Mindera/influxdb,Yong-Lee/influxdb,nckturner/influxdb,pkittenis/influxdb,benbjohnson/influxdb,mre/influxdb,runner-mei/influxdb,imcom/influxdb,samaitra/influxdb,dneuman64/influxdb,Ancillas/influxdb,pablolmiranda/influxdb,tommymei/influxdb,nckturner/influxdb,arussellsaw/influxdb,Yong-Lee/influxdb,tuxmonteiro/influxdb,fg2it/influxdb,ezotrank/influxdb,fg2it/influxdb,michaelsproul/influxdb,DanielMorsing/influxdb,trigrass2/influxdb,mash0304/influxdb,joaopedrotaveira/influxdb,cnelissen/influxdb,fxstein/influxdb,runcom/influxdb,tuxmonteiro/influxdb,mvadu/influxdb,mvadu/influxdb,mnuessler/influxdb,josephcopenhaver/influxdb,nickrobinson/influxdb,fg2it/influxdb,apriendeau/influxdb,bluebreezecf/influxdb,wxdublin/influxdb,toorop/influxdb,CVTJNII/influxdb-tjnii,GrimDerp/influxdb,stvnwrgs/influxdb,atyenoria/influxdb,luciotorre/influxdb,rnubel/influxdb,ASAPPinc/influxdb,Mindera/influxdb,joaopedrotaveira/influxdb,mcanthony/influxdb,luciotorre/influxdb,alexiri/influxdb,arussellsaw/influxdb,endophage/influxdb,mre/influxdb,linfangrong/influxdb,timraymond/influxdb,otoolep/influxdb,pablolmiranda/influxdb,jonseymour/influxdb,Sotfo/influxdb,tuxmonteiro/influxdb,jportoles/influxdb092,sudabon/influxdb,nooproblem/influxdb,mengjinglei/influxdb,daachi/influxdb,mash0304/influxdb,apriendeau/influxdb,no2key/influxdb,mre/influxdb,imcom/influxdb,jipperinbham/influxdb,linfangrong/influxdb,luciotorre/influxdb,m4ce/influxdb,chenziliang/influxdb,joaopedrotaveira/influxdb,IMCG/InfluxDB,influxdb/influxdb,roobert/influxdb,m4ce/influxdb,alexiri/influxdb,wxdublin/influxdb,mnuessler/influxdb,eminden/influxdb,samaitra/influxdb,eminden/influxdb,endophage/influxdb,endophage/influxdb,influxdata/influxdb,endophage/influxdb,CrazyJvm/influxdb,pdf/influxdb,haim0n/influxdb,GoIncremental/influxdb,archsaber/influxdb,fxstein/influxdb,nckturner/influxdb,lgpeterson/influxdb,jonseymour/influxdb,alexiri/influxdb,nckturner/influxdb,CVTJNII/influxdb-tjnii,bluebreezecf/influxdb,apriendeau/influxdb,mmaul/influxdb,GrimDerp/influxdb,rnubel/influxdb,egymgmbh/influxdb,samaitra/influxdb,Tony133/influxdb,pkittenis/influxdb,slavau/influxdb,CrazyJvm/influxdb,cannium/influxdb,li-ang/influxdb,cnelissen/influxdb,roobert/influxdb,nooproblem/influxdb,daachi/influxdb,arussellsaw/influxdb,jgeiger/influxdb,opavader/influxdb,otoolep/influxdb,bluebreezecf/influxdb,121watts/influxdb,atyenoria/influxdb,runner-mei/influxdb,opavader/influxdb,slachiewicz/influxdb,nooproblem/influxdb,Tony133/influxdb,pablolmiranda/influxdb,neonstalwart/influxdb,wxdublin/influxdb,paulstuart/influxdb,ninjasphere/influxdb,ezotrank/influxdb,alexiri/influxdb,DanielMorsing/influxdb,slachiewicz/influxdb,linearb/influxdb,pdf/influxdb,runcom/influxdb,influxdb/influxdb,121watts/influxdb,nickscript0/influxdb,evanphx/influxdb,mark-rushakoff/influxdb,jonseymour/influxdb,tjyang/influxdb,toorop/influxdb,eminden/influxdb,mnuessler/influxdb,mvadu/influxdb,linfangrong/influxdb,trigrass2/influxdb,bspline/influxdb,li-ang/influxdb,ninjasphere/influxdb,opavader/influxdb,wxdublin/influxdb,runcom/influxdb,pkittenis/influxdb,sudabon/influxdb,Ancillas/influxdb,mnuessler/influxdb,GrimDerp/influxdb,apigee/influxdb,fxstein/influxdb,tjyang/influxdb,n1tr0g/influxdb,imcom/influxdb,CVTJNII/influxdb-tjnii,GoIncremental/influxdb,rnubel/influxdb,evanphx/influxdb,timraymond/influxdb,lenko-d/influxdb,mark-rushakoff/influxdb,endophage/influxdb,wxdublin/influxdb,GoIncremental/influxdb,Ancillas/influxdb,atyenoria/influxdb,archsaber/influxdb,roobert/influxdb,daachi/influxdb,neonstalwart/influxdb,Ancillas/influxdb,arussellsaw/influxdb,jportoles/influxdb092,linfangrong/influxdb,pdf/influxdb,benbjohnson/influxdb,apigee/influxdb,influxdb/influxdb,arussellsaw/influxdb,mmaul/influxdb,lgpeterson/influxdb,joaopedrotaveira/influxdb,Mindera/influxdb,arussellsaw/influxdb,mnuessler/influxdb,atyenoria/influxdb,marcosnils/influxdb,Venu4thFeb/influxdb,Venu4thFeb/influxdb,marcosnils/influxdb,s7v7nislands/influxdb,egymgmbh/influxdb,pkittenis/influxdb,Yong-Lee/influxdb,mmaul/influxdb,jipperinbham/influxdb,dneuman64/influxdb,GoIncremental/influxdb,cnelissen/influxdb,michaelsproul/influxdb,luciotorre/influxdb,mark-rushakoff/influxdb,bspline/influxdb,pdf/influxdb,slachiewicz/influxdb,timraymond/influxdb,jgeiger/influxdb,kingland/influxdb,jgeiger/influxdb,vladlopes/influxdb,runcom/influxdb,GoIncremental/influxdb,chenziliang/influxdb,chenziliang/influxdb,apigee/influxdb,GrimDerp/influxdb,fg2it/influxdb,ninjasphere/influxdb,marcosnils/influxdb,haim0n/influxdb,nickscript0/influxdb,paulstuart/influxdb,jportoles/influxdb092