undocumented function repl

[Jon Wilson]

Hi y'all,
I just ran across the function 'repl' ( #<procedure repl (read evaler 
print)>), which doesn't have a docstring, and doesn't appear in the manual 
(well, ok fine, the procedure index of the manual).  I'm using 1.8.

I tried calling it as:
(repl read primitive-eval display)
but that didn't seem to give very meaningful results.  It certainly didn't 
act like the normal guile repl.  Perhaps I just gave it the wrong 
arguments, though.

Does this function produce a normal repl?  If so, how?  If not, then what 
does it do?  Also, perhaps we should either not export it, or else document 
it in the manual.  I would volunteer to document it, but clearly, I don't 
understand it.
Regards,
Jon