[bug report] spaces in folder names.

[Michael Robinson]

I'm using mutt-0.95.4, on a Solaris 2.6 machine, to talk to a
Mircosoft sExchange server via IMAP.  It all seems to work quite
well.

*But*, mutt won't allow me to change to a folder with a space in
its name.  Is this a deliberate design decision?
    -- michael.