[Zope-CMF] is this tiny patch to CMFCore/Expression.py okay?

[Chris Withers]

Dieter Maurer wrote:

>>>Sure, you will also update the documentation, provide tests and
>>>all these nice things that enhance quality.
>>>When you consider thse additional needs, you may see that
>>>your change is not worth the effort...
>>
>>Check the CVS for CMF, you'll see that I did a LOT of work to tidy up 
>>all the tests a long time ago...
> 
> And you added a note to the Zope Book?
> 
> Or will this be a private Chris Withers feature?

I wasn't aware the Zope Book covered CMF, which chapter should I add 
documentation too?

Chris

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