Michael Albinus <michael.albinus@gmx.de> writes:

> Philip Kaludercic <philipk@posteo.net> writes:
>
>> branch: master
>> commit fa4203300fde6820a017bf1089652fb95759d68c
>> Merge: a7dff8c53dd cc0a3a5f65b
>> Author: Philip Kaludercic <philipk@posteo.net>
>> Commit: Philip Kaludercic <philipk@posteo.net>
>>
>>     Merge remote-tracking branch 'origin/feature/which-key-in-core'
>> ---
>>  etc/NEWS                     |    7 +
>>  lisp/which-key.el            | 2814 ++++++++++++++++++++++++++++++++++++++++++
>>  test/lisp/which-key-tests.el |  267 ++++
>>  3 files changed, 3088 insertions(+)
>
> Seen in the emacs-30 branch:
>
> # make -C test test-custom-opts
> ...
> The following options might have problems:
> variable: which-key-separator
>    value: nil
>     type: (string)
> variable: which-key-ellipsis
>    value: nil
>     type: (string)
> ...
>    FAILED  1/1  check-for-wrong-custom-opts (39.873179 sec) at misc/test-custom-opts.el:33
>
> Ran 1 tests, 0 results as expected, 1 unexpected (2024-06-24 21:14:57+0200, 40.332174 sec)
>
> 1 unexpected results:
>    FAILED  check-for-wrong-custom-opts

This should fix the issue: