OPT_STRBUF
{ letter, name, NULL, OPT_STRBUF, 0, 0, desc }
{ 'o', "optimization", NULL, OPT_STRBUF,
{ 'b', "BootAreaSize", NULL, OPT_STRBUF, 0, 0, "boot area size" },
{ 'r', "AuxAreaSize", NULL, OPT_STRBUF, 0, 0, "aux area size" },
{ 'V', "Hammer2Version", NULL, OPT_STRBUF, 0, 0, "file system version" },
{ 'L', "Label", NULL, OPT_STRBUF, 0, 0, "PFS label" },
{ 'm', "MountLabel", NULL, OPT_STRBUF, 0, 0, "destination PFS label" },
{ 'c', "CompressionType", NULL, OPT_STRBUF, 0, 0, "compression type" },
{ 'C', "CheckType", NULL, OPT_STRBUF, 0, 0, "check type" },
{ 'd', "Hammer2Debug", NULL, OPT_STRBUF, 0, 0, "debug tunable" },
{ 'P', "PFS", NULL, OPT_STRBUF, 0, 0, "offline PFS" },
{ 'I', "Inode", NULL, OPT_STRBUF, 0, 0, "offline inode" },
{ 'B', "Bulkfree", NULL, OPT_STRBUF, 0, 0, "offline bulkfree" },
{ 'D', "Destroy", NULL, OPT_STRBUF, 0, 0, "offline destroy" },
{ 'G', "Growfs", NULL, OPT_STRBUF, 0, 0, "offline growfs" },
{ 'R', "Read", NULL, OPT_STRBUF, 0, 0, "offline read" },
case OPT_STRBUF: