Re: [PATCH 0/4] diff.wsErrorHighlight configuration variable

> "git diff" and its family of commands have "--ws-error-highlight"
> option to allow whitespace breakages on old and context lines
> painted in color.diff.whitespace color, instead of the usual "we
> paint breakages only on new lines", but there wasn't a configuration
> variable that corresponds to it.
> 
> This would be a lot closer to a series that could be acceptable,
> compared to the previous "it should look like this" patch.
> 
> Junio C Hamano (4):
>   t4015: split out the "setup" part of ws-error-highlight test
>   diff.c: refactor parse_ws_error_highlight()
>   diff.c: move ws-error-highlight parsing helpers up
>   diff: introduce diff.wsErrorHighlight option