Correct percent of threat redirected for Misdirection aura. By tvaroh

This patch is only 2.4.3 valid, please do not pull it to TC2.

--HG--
branch : trunk

src/game/SpellEffects.cpp

@@ -6280,6 +6280,6 @@ void Spell::EffectQuestFail(uint32 i)
 void Spell::EffectRedirectThreat(uint32 /*i*/)
 {
     if(unitTarget)
-        m_caster->SetReducedThreatPercent((uint32)damage, unitTarget->GetGUID());
+        m_caster->SetReducedThreatPercent(100, unitTarget->GetGUID());
 }