rtrim_copy
if ((s = rtrim_copy(inq.inq_vid, sizeof (inq.inq_vid))) != NULL) {
if ((s = rtrim_copy(inq.inq_pid, sizeof (inq.inq_pid))) != NULL) {
if ((s = rtrim_copy(inq.inq_revision, sizeof (inq.inq_revision))) != NULL) {
if ((s = rtrim_copy(inq.inq_serial, sizeof (inq.inq_serial))) != NULL) {
label = rtrim_copy(label_orig, 0);