Re: [PATCH 1/2] git-diff.txt: don't mark required argument as optional

> Commit b7e10b2ca2 ("Documentation: usage for diff combined commits",
> 2020-06-12) modified the synopsis by adding an optional "[<commit>...]"
> to
>
>   'git diff' [<options>] <commit> <commit> [--] [<path>...]
>
> to effectively add
>
>   'git diff' [<options>] <commit> <commit>... <commit> [--] [<path>...]
>
> as another valid invocation. Which makes sense.
>
> Further down, in the description, it left the existing entry for
>
>   'git diff' [<options>] <commit> <commit> [--] [<path>...]
>
> intact and added a new entry on
>
>   'git diff' [<options>] <commit> [<commit>...] <commit> [--] [<path>...]
>
> where it says that "[t]his form is to view the results of a merge
> commit" and details how "the first listed commit must be the merge
> itself". But one possible instantiation of this form is `git diff
> <commit> <commit>` for which the added text doesn't really apply.
>
> Remove the brackets so that we lose this overlap between the two
> descriptions. We can still use the more compact representation in the
> synopsis.
>
> Signed-off-by: Martin Ågren <martin.agren@gmail.com>
> ---
>  Documentation/git-diff.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt
> index 1018110ddc..c613e71ca4 100644
> --- a/Documentation/git-diff.txt
> +++ b/Documentation/git-diff.txt
> @@ -69,7 +69,7 @@ files on disk.
>  	one side is omitted, it will have the same effect as
>  	using HEAD instead.
>  
> -'git diff' [<options>] <commit> [<commit>...] <commit> [--] [<path>...]::
> +'git diff' [<options>] <commit> <commit>... <commit> [--] [<path>...]::