DO_ERR
int errs=1, emsg=DO_ERR;
emsg ^= DO_ERR;
if (act & DO_ERR)
DO_ERR("%s: can't open `%s'", __func__,
DO_ERR("%s: failed", __func__);
DO_ERR("%s: failed", __func__);
DO_ERR("%s: failed", __func__);
DO_ERR("%s: failed", __func__);
DO_ERR("%s: cannot open `%s'", __func__, "foo");
DO_ERR("%s: can't close db", __func__);