bug#50727: Contradictory conventions with new command kbd-macro-display

[Gregory Heytings]

> `kbd-macro-display' is a new command in Emacs 28 bound to `C-x C-k Q'. 
> (See commit d4e9d191aeba.)
>
> However, the `kmacro-bind-to-key' docstring says:
>
>    The key sequences [C-x C-k 0] through [C-x C-k 9] and [C-x C-k A]
>    through [C-x C-k Z] are reserved for user bindings, and to bind to
>    one of these sequences, just enter the digit or letter, rather than
>    the whole sequence.
>
> This advice seems to conflict with the chosen key binding for 
> `kbd-macro-display'.

It's 'kbd-macro-redisplay', not 'kbd-macro-display'.  Indeed it conflicts 
with the keys that are supposed to be reserved for user bindings, but it 
is by far not the only one:

C-x C-k Q       kdb-macro-redisplay
C-x C-k b       kmacro-bind-to-key
C-x C-k e       edit-kbd-macro
C-x C-k l       kmacro-edit-lossage
C-x C-k n       kmacro-name-last-macro
C-x C-k q       kbd-macro-query
C-x C-k r       apply-macro-to-region-lines
C-x C-k s       kmacro-start-macro
C-x C-k x       kmacro-to-register