prints usage message if help flag is raised
prints usage message if help flag is raised

AdriVanHoudt/lab,ldesplat/lab,Marsup/lab,ldesplat/lab,AdriVanHoudt/lab,lloydbenson/lab,AdriVanHoudt/lab,ldesplat/lab,lloydbenson/lab,Marsup/lab,lloydbenson/lab,Marsup/lab