🚀 go-pugleaf

Emacs 19.27. The manual doesn't document the variable window-system.
(At least searching for it doesn't find it.)

Also, getting to the concept index from the main manu is painful,
because there are two nodes that start with `Concept' -- `Concept Index'
and `Concepts of VC'.  Thus I have to do Concept C-q SPC RET.  Yuck.

Anyway, perhaps you'd consider combining all the indexes into one.  I
see no advantage to having different indexes for different types of
stuff -- all it does is give the reader N places to look up a symbol,
instead of one.  When I'm looking something up, I'm not thinking about
whether it's a function or whatever -- I just want to go to the index
and look up the name.