dfbdumpinput: fix warnings
dfbdumpinput: fix warnings

kevleyski/directfb,DirectFB/directfb,kevleyski/DirectFB-1,kevleyski/DirectFB-1,mtsekm/test,lancebaiyouview/DirectFB,dfbdok/DirectFB1,kevleyski/directfb,djbclark/directfb-core-DirectFB,kevleyski/DirectFB-1,deniskropp/DirectFB,lancebaiyouview/DirectFB,kaostao/directfb,djbclark/directfb-core-DirectFB,deniskropp/DirectFB,kaostao/directfb,jcdubois/DirectFB,kaostao/directfb,lancebaiyouview/DirectFB,jcdubois/DirectFB,sklnet/DirectFB,mtsekm/test,kevleyski/DirectFB-1,djbclark/directfb-core-DirectFB,DirectFB/directfb,dfbdok/DirectFB1,sklnet/DirectFB,djbclark/directfb-core-DirectFB,sklnet/DirectFB,mtsekm/test,jcdubois/DirectFB,Distrotech/DirectFB,kevleyski/directfb,Distrotech/DirectFB,Distrotech/DirectFB,sklnet/DirectFB,DirectFB/directfb,kevleyski/directfb,deniskropp/DirectFB,lancebaiyouview/DirectFB,deniskropp/DirectFB,dfbdok/DirectFB1