Exhumed: fixed radial damage push factor.

The original did 'bsin(x) >> 3' with vel being Q18.14 and bsin also returning Q18.14. So for fully floatified values we still must multiply by 1/8, not 128.

source/games/exhumed/src/runlist.cpp

@@ -1790,7 +1790,7 @@ int runlist_CheckRadialDamage(DExhumedActor* pActor)
                 }
                 else
                 {
-                    pActor->vel.XY() += nVel.XY() * 128.;
+                    pActor->vel.XY() += nVel.XY() * 0.125;
                 }
             }
         }