Fixed multiple periods expected shocks in the case of mshocks.

(cherry picked from commit d8ddd9ef)

matlab/perfect-foresight-models/make_ex_.m

@@ -90,7 +90,7 @@ if isfield(M_, 'det_shocks')
             if ~M_.det_shocks(i).multiplicative
                 oo_.exo_simul(k,ivar) = v;
             else
-                oo_.exo_simul(k,ivar) = oo_.exo_simul(k,ivar) * v;
+                oo_.exo_simul(k,ivar) = oo_.exo_simul(k,ivar) .* v;
             end
         else
             if ~M_.det_shocks(i).multiplicative