Just needs 1 change, as -f has been updated in 6.2. From the upstream man page:

       -f file | --config file
           Load a virt-v2v configuration from file. Multiple configuration
           files can be specified, which will be searched in the order they
           are specified on the command line. If no configuration is
           specified, defaults to /etc/virt-v2v.conf and
           /var/lib/virt-v2v/virt-v2v.db in that order.

           When overriding the default config file it is recommended that
           /var/lib/virt-v2v/virt-v2v.db is also specified, as it contains
           default configuration data required for conversions.