Release of 6.4.0 * Wed Oct 21 2020 Chris Tessmer <chris.tessmer@onyxpoint.com> - 6.4.0-0 - Added check for dangerously unspecific OS versions in `unpack_dvd` (e.g., '7' instead of '7.0.2003'). This is common when autodetecting the OS version from the ISO's .treeinfo on some OSes (particularly CentOS). - When detected, script will exit with an informative message + instructions. - In this case, users should provide a more specific version with `-v`. - Users can explicitly specify an unspecific version with `-v`.