DHCP module needs its dictionary

default install fails with this:

Cannot open /etc/raddb/dictionary.dhcp: dict_init: Couldn't open
dictionary "/etc/raddb/dictionary.dhcp": No such file or directory
/etc/raddb/mods-enabled/dhcp[18]: Instantiation failed for module "dhcp"

dictionary file not loaded up as its not in dictionary. added as
include (but note that the error message isnt right..the path is not
printed correctly!)