4.13.90, again

[Karl Berry]

I just updated http://freefriends.org/~karl/texinfo-4.13.90.tar.xz
(maybe no typo this time :).

Stefano, if you could do your tests again, that would be great.  If it
gets by you, I'll make it a public pretest.

Things to do certainly remain, but I think/hope nothing critical for
other people to give it a try.

Thanks,
Karl