Semicolons in .dbd files are not valid syntax

In subs.dbd:

function(two_s_complement);

function(mode_dec);
function(dest_dec);

function(mode_dec_set);
function(dest_dec_set);

function(sub_regs);

function(type_sub_det);
function(epoch_time_asub);

function(set_epoch_time);

The ; are not valid syntax and cause the build to fail.