Subject: bug#34023: Support double colons in Info index entries

From: Drew Adams <[email-masked]>
Date: Thu, 10 Jan 2019 16:28:00 -0800 (PST)

> The Emacs Info mode supports single colons in index
> entries as long as they are not followed by a space.

I thought they were verboten altogether.  Does this
mean that we can finally have index entries such as
`:type'?  That would be good.