Scripts/VioletHold: Fix correct boss erekem repeat time interval

Updates coverity issue #1318019

src/server/scripts/Northrend/VioletHold/boss_erekem.cpp

@@ -208,7 +208,10 @@ class boss_erekem : public CreatureScript
                     if (Unit* ally = DoSelectLowestHpFriendly(40.0f))
                         DoCast(ally, SPELL_CHAIN_HEAL);
 
-                    task.Repeat(!CheckGuardAlive() ? Seconds(3) : Seconds(8), Seconds(11));
+                    if (!CheckGuardAlive())
+                        task.Repeat(Seconds(3));
+                    else
+                        task.Repeat(Seconds(8), Seconds(11));
                 });
 
                 scheduler.Schedule(Seconds(2), Seconds(8), [this](TaskContext task)