[Dovecot] Cosmetic issue with dots in Maildir folder names

[Holger Weiss]

Just a minor cosmetic issue: We use the listescape plugin in order to
support "." characters in Maildir++ folder names, and in at least the
following case, the escaped representation of the dot character ("\2e")
won't be translated back to a "." in messages for the IMAP client:

| 1 SELECT non.existent
| 1 NO Mailbox doesn't exist: non\2eexistent

However, SELECTing an existing folder whose name includes a dot works
fine, and it also works in other cases, e.g.:

| 2 CREATE does.exist
| 2 OK Create completed.
| 3 LIST "" does.exist
| * LIST (\HasNoChildren) "/" does.exist
| 3 OK List completed.

This is with Dovecot 1.1.3; we use "separator = /" and we've defined
REAL_SEP to '.' and VIRTUAL_SEP to '/' in the plugin.

Holger