Re: [PATCH v6] difftool.c: learn a new way start at specified file

> From: ZheNing Hu <adlternative@gmail.com>
>
> `git difftool` only allow us to select file to view in turn.
> If there is a commit with many files and we exit in the middle,
> we will have to traverse list again to get the file diff which
> we want to see. Therefore,teach the command an option
> `--skip-to=<path>` to allow the user to say that diffs for earlier
> paths are not interesting (because they were already seen in an
> earlier session) and start this session with the named path.
>
> Signed-off-by: ZheNing Hu <adlternative@gmail.com>
> ---
>     difftool.c: learn a new way start at specified file
>     
>      * The patch of the previous version implemented the jump through
>        environment variables. The current version is based on the "diff
>        --skip-to=" feature implemented by gitster, which implements a
>        possible solution for the jump of difftool.