set $0 properly in the tests
set $0 properly in the tests

sgentle/yargs,nexdrew/yargs,elas7/yargs,tepez/yargs,rstacruz/yargs,LoicMahieu/yargs,dkoleary88/yargs,oti/yargs,bcoe/yargs,substack/node-optimist,ChristianMurphy/yargs,yargs/yargs,etiktin/yargs,geophree/yargs,ggoodman/yargs,ammeep/yargs,ammeep/yargs,dkoleary88/yargs,tepez/yargs,nexdrew/yargs,elas7/yargs,jean-emmanuel/yargs,jean-emmanuel/yargs,jvdm/yargs,yargs/yargs,raine/yargs,zkat/yargs,bcoe/yargs,geophree/yargs,yargs/yargs,Teino1978-Corp/Teino1978-Corp-node-optimist