patchclone: don't use an integer as a NULL pointer

>
> Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
> ---
>
> Hi Stefan,
>
> If you need to re-roll your 'sb/submodule-default-paths' branch, could
> you please squash this into the relevant patch. (commit 8efbe28b,
> "clone: add --init-submodule=<pathspec> switch", 23-05-2016).
>
> Thanks!
>
> ATB,
> Ramsay Jones

>
>  builtin/clone.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/builtin/clone.c b/builtin/clone.c
> index 22b6eac..a056f72 100644
> --- a/builtin/clone.c
> +++ b/builtin/clone.c
> @@ -925,7 +925,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
>                 struct strbuf sb = STRBUF_INIT;
>                 for_each_string_list_item(item, &init_submodules) {
>                         strbuf_addf(&sb, "submodule.defaultUpdatePath=%s", item->string);
> -                       string_list_append(&option_config, strbuf_detach(&sb, 0));
> +                       string_list_append(&option_config, strbuf_detach(&sb, NULL));
>                 }
>         }
>
> --
> 2.8.0

> On Wed, May 25, 2016 at 4:12 PM, Ramsay Jones
> <ramsay@ramsayjones.plus.com> wrote:
>>
>> Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
>> ---
>>
>> Hi Stefan,
>>
>> If you need to re-roll your 'sb/submodule-default-paths' branch, could
>> you please squash this into the relevant patch. (commit 8efbe28b,
>> "clone: add --init-submodule=<pathspec> switch", 23-05-2016).
>>
>> Thanks!
>>
>> ATB,
>> Ramsay Jones
> 
> Thanks for pointing out!
> 
> I am sorry for having you write me these emails;