Core/Conditions: Correct a misleading comment regarding CONDITION_AURA

(cherry picked from commit e64da76)

Author: DDuarte

src/server/game/Conditions/ConditionMgr.h

@@ -36,7 +36,7 @@ struct Condition;
 enum ConditionTypes
 {                                                              // value1                 value2         value3
     CONDITION_NONE                     = 0,                    // 0                      0              0                  always true
-    CONDITION_AURA                     = 1,                    // spell_id               effindex       use target?        true if player (or target, if value3) has aura of spell_id with effect effindex
+    CONDITION_AURA                     = 1,                    // spell_id               effindex       0                  true if target has aura of spell_id with effect effindex
     CONDITION_ITEM                     = 2,                    // item_id                count          bank               true if has #count of item_ids (if 'bank' is set it searches in bank slots too)
     CONDITION_ITEM_EQUIPPED            = 3,                    // item_id                0              0                  true if has item_id equipped
     CONDITION_ZONEID                   = 4,                    // zone_id                0              0                  true if in zone_id