bug#25683: semi-working patch

[Tom Tromey]

Dmitry> Someone else is yours truly, so not sure when that happens.

Oops, sorry about that.  I didn't read the bug very closely it seems...

Dmitry> Anyway, thanks for the fix! --porcelain can wait some more.

It's on my wish-list, but after a bunch of other things.
I think I look at the per-file state very rarely if at all;
whereas vc-dir is one of my main views when working on a project.

Tom