oleaut32: Fully initialize VarMod() return value for Empty % x case.

dlls/oleaut32/tests/vartest.c

@@ -3513,7 +3513,8 @@ static void test_Mod( int line, VARIANT *left, VARIANT *right, VARIANT *expected
     VARIANT result;
     HRESULT hres;
 
-    memset( &result, 0, sizeof(result) );
+    V_VT(&result) = 15;
+    V_I4(&result) = 0x12345;
     hres = pVarMod( left, right, &result );
     ok_(__FILE__,line)( hres == expres, "wrong result %lx/%lx\n", hres, expres );
     if (hres == S_OK)

dlls/oleaut32/variant.c

@@ -5499,6 +5499,7 @@ HRESULT WINAPI VarMod(LPVARIANT left, LPVARIANT right, LPVARIANT result)
       if(V_VT(left) == VT_EMPTY)
       {
 	V_VT(result) = VT_I4;
+        V_I4(result) = 0;
         rc = S_OK;
         goto end;
       }