bug#50344: C-x v keybinding for vc-print-branch-log

[Juri Linkov]

>> +    (define-key map "Bc" #'vc-create-tag)
>> +    (define-key map "Bl" #'vc-print-branch-log)
>> +    (define-key map "Bs" #'vc-retrieve-tag)
>
> Makes sense to me as well. Thanks!
>
> Do we want to remove the vc-retrieve-tag from 'C-x v r' sometime later?

I guess, yes.  But is it possible to deprecate a keybinding like
there are 'make-obsolete' for functions and 'make-obsolete-variable'?

> It does have a dual function (branches/tags and commits as well), but it would
> be nice to free this combination.

Do you mean to create two separate commands and separate keybindings
for switching a branch vs tags?