imap: FETCH X-GUID and X-MAILBOX didn't add a space after their value.
imap: FETCH X-GUID and X-MAILBOX didn't add a space after their value.

--HG--
branch : HEAD

jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot