What's the best way to write this regular expression?

[Terry Reedy]

On 3/6/2012 6:57 PM, John Salerno wrote:
>> Also, you're still double-posting.
>
> Grr. I just reported it to Google, but I think if I start to frequent
> the newsgroup again I'll have to switch to Thunderbird, or perhaps
> I'll just try switching back to the old Google Groups interface. I
> think the issue is the new interface.

I am not seeing the double posting, but I use Thunderbird + the 
news.gmane.org mirrors of python-list and others.

-- 
Terry Jan Reedy