Scripts/Darkshore: Fix an issue with the quest Gyromast's Revenge

TODO: Rewrite the script in SAI

Closes #11987

Signed-off-by: DDuarte <dnpd.dd@gmail.com>

src/server/scripts/Kalimdor/zone_darkshore.cpp

@@ -349,7 +349,7 @@ public:
             if (Player* pHolder = GetLeaderForFollower())
                 AttackStart(pHolder);
 
-            SetFollowComplete();
+            SetFollowComplete(true);
         }
     };