transaction_add_set
r = transaction_add_set(tx, ent, "runlevel", SCF_TYPE_ASTRING);
ret = transaction_add_set(tx, e, pname, ty);
ret = transaction_add_set(tx, e_ms,
ret = transaction_add_set(tx, e_time, pname, SCF_TYPE_TIME);
ret = transaction_add_set(tx, e_stat, pname, SCF_TYPE_INTEGER);