Re: [PATCH v10 8/9] submodule: refactor show_submodule_summary with helper function

> From: Jacob Keller <jacob.keller@gmail.com>
>
> A future patch is going to add a new submodule diff format which
> displays an inline diff of the submodule changes. To make this easier,
> and to ensure that both submodule diff formats use the same initial
> header, factor out show_submodule_header() function which will print the
> current submodule header line, and then leave the show_submodule_summary
> function to lookup and print the submodule log format.
>
> This does create one format change in that "(revision walker failed)"
> will now be displayed on its own line rather than as part of the message
> because we no longer perform this step directly in the header display
> flow. However, this is a rare case as most causes of the failure will be
> due to a missing commit which we already check for and avoid previously.
> flow. However, this is a rare case and shouldn't impact much.
>
> Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
> ---