bug#3516: 23.0.94; function key names in Info

emacs -Q
C-h r
g keys
 
We see things like <F1>, <F2>, <RET>, and <ESC> without single
quotes. Similarly, in other parts of the manual.
 
Shouldn't those be `<f1>', `<f2>', `<RET>', and `<ESC>'?
 
We use `C-x <RET>' here, and we use `C-x', but not `<RET>'. Likewise,
we use `<ESC>C-h' (which should be `<ESC> C-h', BTW), but not `<ESC>'.
 
The notation used does not seem consistent.
Why write "(`C-h' or <F1>)", instead of "(`C-h' or `<F1>')"?
 
(This also has the side effect of not fontifying, in contexts where
`...' is fontified.)
 
In GNU Emacs 23.0.94.1 (i386-mingw-nt5.1.2600)
 of 2009-05-24 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'