l9p_describe_qid
l9p_describe_qid(i == 0 ? "" : ",",
l9p_describe_qid(" qid=", &fcall->ropen.qid, sb);
l9p_describe_qid(" qid=", &fcall->rcreate.qid, sb);
l9p_describe_qid(" qid=", &fcall->rlopen.qid, sb);
l9p_describe_qid(" qid=", &fcall->rlcreate.qid, sb);
l9p_describe_qid(" qid=", &fcall->ropen.qid, sb);
l9p_describe_qid(" qid=", &fcall->rmknod.qid, sb);
l9p_describe_qid(" qid=", &fcall->rgetattr.qid, sb);
l9p_describe_qid(" qid=", &fcall->rmkdir.qid, sb);
l9p_describe_qid(" qid=", &st->qid, sb);
l9p_describe_qid(" qid=", &de.qid, sb);
static void l9p_describe_qid(const char *, struct l9p_qid *, struct sbuf *);
l9p_describe_qid(" ", &fcall->rattach.qid, sb);