[exim] Exim 4.89 RC6 tomorrow (Wednesday)

We have fixes for SMTP CHUNKING handling messages sent without a final
newline, to be part of 4.89. We fix the messages as received, and have
a Perl script to fix up broken messages stuck in your queue.

We have one outstanding report of message segfaults, on one system. I
don't believe these have been reproduced by anyone else, but I'm waiting
for more feedback from the reporter: if there is a bug in Exim here,
I'll try and get it into RC6.

So we should have RC6 sometime on Wednesday.

-Phil