1512. [func] tmark kea-dhcp4 will now ignore empty Host Name (option code 12) values received from clients. While an empty value for this option is not RFC-compliant, some clients do send them. Prior to the this server would drop the entire packet. In the spirit of being liberal in what we accept, the server will now simply omit the option. (#40,!203, git f41bd35c3e7a3bdc1f31c5602fd91d5c84c60163)