ER_perror         20 tests/er/test_er.c   ER_perror(FAC_ER, ER_TOOSTU);
ER_perror         22 tests/er/test_er.c   ER_perror(FAC_IP, ER_TOOLAT, time(NULL));
ER_perror        562 tests/rx/test_rx.c       ER_perror(FAC_RX, err);
ER_perror        645 tests/rx/test_rx.c     ER_perror(FAC_RX, err);