--dhcp-rapid-commit
Enable DHCPv4 Rapid Commit Option specified in RFC 4039. When enabled, dnsmasq
will respond to a DHCPDISCOVER message including a Rapid Commit
option with a DHCPACK including a Rapid Commit option and fully committed
address and configuration information. Should only be enabled if either the
server is the only server for the subnet, or multiple servers are present and they each commit a binding for all clients.