bug#60411: 29.0.60; minibuffer-next-completion skips first candidate when completions-header-format and completion-show-help are nil

[Juri Linkov]

>>> Please remove (= n 1) and replace (setq n 0) with (setq n (1- n)) to
>>> support the prefix arg with ‘M-N M-n’.
>>
>> When n > 0.
>
> You mean this, right?

Exactly.

> It took me a few minutes to understand what you meant by "support the
> prefix arg" in this case.  And indeed with the previous version of the
> patch, M-x M-2 M-<down> selects the third completion candidate (2C-split),
> whereas with this patch the second one (2C-command) is selected.

Sorry for two mistakes in one message.