Update wording on flag example
Update wording on flag example

chrisroberts/vagrant,sni/vagrant,bryson/vagrant,chrisroberts/vagrant,gitebra/vagrant,sni/vagrant,mitchellh/vagrant,gitebra/vagrant,sni/vagrant,bryson/vagrant,sni/vagrant,bryson/vagrant,gitebra/vagrant,mitchellh/vagrant,gitebra/vagrant,marxarelli/vagrant,mitchellh/vagrant,marxarelli/vagrant,chrisroberts/vagrant,bryson/vagrant,chrisroberts/vagrant,marxarelli/vagrant,marxarelli/vagrant,mitchellh/vagrant