o_stream_send_istream() was broken and could have just caused copying to be done infinitely filling up disk.
o_stream_send_istream() was broken and could have just caused copying to be
done infinitely filling up disk.

--HG--
branch : HEAD

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