you can achieve this by doing
<item
android:id="@+id/menus"
android:actionProviderClass="@android:style/Widget.Holo.ActionButton.Overflow"
android:icon="@drawable/your_icon"
android:showAsAction="always">
<item android:id="@+id/Bugreport"
android:title="@string/option_bugreport" />
<item android:id="@+id/Info"
android:title="@string/option_info" />
<item android:id="@+id/About"
android:title="@string/option_about" />
</item>