If mail_nfs_index=yes, give an error if mmap_disable=no / fsync_disable=yes.
If mail_nfs_index=yes, give an error if mmap_disable=no / fsync_disable=yes.

--HG--
branch : HEAD

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