Maildir: Group of the created shared directory wasn't set. Patch by Simon Michelson.
Maildir: Group of the created shared directory wasn't set.
Patch by Simon Michelson.

--HG--
branch : HEAD

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