MDB_DBG_HELP
if ((addr = mdb_dstr2mode(argv->a_un.a_str)) != MDB_DBG_HELP)
if (bits & MDB_DBG_HELP) {
{ "help", "display this listing", MDB_DBG_HELP },
{ "all", "set all debug modes", (uint_t)~MDB_DBG_HELP },
if (mdb.m_debug & MDB_DBG_HELP)
if (opt_D != NULL && (i = mdb_dstr2mode(opt_D)) != MDB_DBG_HELP)