nvme_strlen
extern int nvme_strlen(const char *, int);
nvme_strlen(fwlog->fw_frs[0], sizeof (fwlog->fw_frs[0])),
nvme_print(indent, name, index, "%.*s", nvme_strlen(value, len), value);
id_model_len = nvme_strlen(nvme->n_idctl->id_model,
id_fwrev_len = nvme_strlen(nvme->n_idctl->id_fwrev,