If we can't open the log file, write the error to stderr instead of relying on the existing fatal handler which may not do anything.
If we can't open the log file, write the error to stderr instead of relying
on the existing fatal handler which may not do anything.

--HG--
branch : HEAD

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