Re: [PATCH 2/2] diff: test and document -W interaction with -U<n>

> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
> ---
>   Documentation/diff-options.txt | 8 ++++++++
>   t/t4018-diff-funcname.sh       | 5 +++++
>   2 files changed, 13 insertions(+)
> 
> diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
> index 8ca59effa7..3c19c78616 100644
> --- a/Documentation/diff-options.txt
> +++ b/Documentation/diff-options.txt
> @@ -88,6 +88,11 @@ endif::git-log[]
>   --unified=<n>::
>   	Generate diffs with <n> lines of context instead of
>   	the usual three.
> ++
> +Under `-W` generates diffs with at least <n> lines of context, if the
> +number is lower than the context `-U<n>` would extend the diff to then
> +`-U<n>` takes precedence.
> +

>   ifndef::git-format-patch[]
>   	Implies `--patch`.
>   endif::git-format-patch[]
> @@ -763,6 +768,9 @@ endif::git-format-patch[]
>   When showing the whole function for context the "@@" context line
>   itself will always be empty, since the context that would otherwise be
>   shown there will be the first line of the hunk being shown.
> ++
> +See the documentation for `-U<n>` above for how the two options
> +interact.