Make NPCs use both hands in weaponless combat.

apps/openmw/mwmechanics/aicombat.cpp

@@ -688,7 +688,7 @@ ESM::Weapon::AttackType chooseBestAttack(const ESM::Weapon* weapon, MWMechanics:
         float roll = Misc::Rng::rollClosedProbability();
         if(roll <= 0.333f)  //side punch
         {
-            movement.mPosition[0] = Misc::Rng::rollClosedProbability() ? 1.0f : -1.0f;
+            movement.mPosition[0] = (Misc::Rng::rollClosedProbability() < 0.5f) ? 1.0f : -1.0f;
             movement.mPosition[1] = 0;
             attackType = ESM::Weapon::AT_Slash;
         }