2 comments & one translatable string :

./frontends/php/api/classes/CTrigger.php: // if found trigger id in dependant triggerids, then there is dependency loop
./frontends/php/api/classes/CTrigger.php: * @throws APIException if at least one trigger is dependant on it's child
./frontends/php/api/classes/CTrigger.php: _s('Trigger cannot be dependant on a trigger, that is inherited from it.')

also, the first comment above is proper sentence make not

and i doubt the need for comma in the translatable string, but that should be verified