au_to_arg64
token_t *au_to_arg64(char n, const char *text, uint64_t v);
tok = au_to_arg64((argnum), (argname), \
tok = au_to_arg64(2, "policy",
tok = au_to_arg64(2, "setqctrl:aq_hiwater",
tok = au_to_arg64(2, "setqctrl:aq_lowater",
tok = au_to_arg64(2, "setqctrl:aq_bufsz",
tok = au_to_arg64(2, "setqctrl:aq_delay",
tok = au_to_arg64(2, "setqctrl:aq_minfree",
tok = au_to_arg64(2, "setcond",