When shutting down do one last read from log fds to see if there's something waiting. Also set log fd to be non-blocking.
When shutting down do one last read from log fds to see if there's something
waiting. Also set log fd to be non-blocking.

--HG--
branch : HEAD

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