Update comment

Author: erlingrj

core/reactor_common.c

@@ -550,9 +550,8 @@ void _lf_initialize_timers(environment_t* env) {
         }
     }
 
-    // Create an extra event and put it on the recycle queue. 
-    // An LF program with n timers require n+1 events. By putting the
-    // last event on the recycle queue we avoid allocating it at runtime.
+    // To avoid runtime memory allocations for timer-driven programs
+    // the recycle queue is initialized with a single event.
     if (env->timer_triggers_size > 0) {
         event_t *e = _lf_get_new_event(env);
         _lf_recycle_event(env, e);