handle open() failure
handle open() failure

micmro/imgmin,micmro/imgmin,rflynn/imgmin,pornel/imgmin,rflynn/imgmin,micmro/imgmin,pornel/imgmin,micmro/imgmin,jibsen/imgmin,jibsen/imgmin,pornel/imgmin,rflynn/imgmin,jibsen/imgmin,jibsen/imgmin,pornel/imgmin,rflynn/imgmin