mb2q experience and couple issues

[Alexei Starovoitov]

Hi Thomas,

For the last couple years we've been using mb2q tool to normalize patches
and it worked wonderfully.
Recently we've hit few bugs:
curl -s https://patchwork.kernel.org/patch/11807443/mbox/ >
/tmp/mbox.i; ~/bin/mb2q --mboxout mbox.o /tmp/mbox.i
Drop Message w/o Message-ID: No subject
No patches found in mbox

I've tried to debug it, but couldn't figure out what's going on.
The subject and message-id fields are parsed correctly,
but later something happens.
Could you please take a look?

Another issue we've hit was that some mailers split message-id
into few lines like this:
curl -s https://patchwork.kernel.org/patch/11809399/mbox/|grep -2 Message-Id:
Subject: [PATCH bpf-next v4 1/6] bpf: add classid helper only based on skb->sk
Date: Wed, 30 Sep 2020 17:18:15 +0200
Message-Id:
 <ed633cf27a1c620e901c5aa99ebdefb028dce600.1601477936.git.daniel@xxxxxxxxxxxxx>
X-Mailer: git-send-email 2.21.0

That was an easy fix:
- mid = pmsg.msgid.lstrip('<').rstrip('>')
+ mid = pmsg.msgid.lstrip('\n').lstrip(' ').lstrip('<').rstrip('>')

The tglx/quilttools.git doesn't have this fix, so I'm guessing you
haven't seen it yet.

Thanks!