Re: [PATCH] checkout: respect diff.ignoreSubmodules setting

> 
> When 'git checkout' reports uncommitted changes, it also does so for
> submodules.
> 
> The default mode is now to look really hard into submodules, not only
> for different commits, but also for modified files. Since this can be
> pretty expensive when there are a lot (and large) submodules, there is
> the diff.ignoreSubmodules option.
> 
> Let's respect that setting when 'git checkout' reports the uncommitted
> changes, since it does nothing else than a 'git diff --name-status'.
> 
> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>