If o_stream_send_istream() fails with ENOSPC/EDQUOT, don't log a critical error but just give user a "not enough disk space" error.
If o_stream_send_istream() fails with ENOSPC/EDQUOT, don't log a critical
error but just give user a "not enough disk space" error.

--HG--
branch : HEAD

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