Indeed. This will probably be removed. The argument against --required-args is actually much simpler: it only makes sense to have groups of required arguments -

Indeed. This will probably be removed. The argument against --required-args is actually much simpler: it only makes sense to have groups of required arguments - such as when we either want -a -b -c or '-x -y -z', but it's pointless to demand to include any single argument that doesn't require an explicit value.