[MERGE][Take Five] Show the diff in the commit messages

[Goffredo Baroncelli]

On Friday 24 August 2007, you (Martin Pool) wrote:
> I've addressed these and will send it in.  Thanks Goffredo, Aaron.
> 
> > ^^^ It is nicer to make 'utf-8' the default parameter, instead of None.  
(unless you need to distinguish between a caller-supplied 'utf-8' and the 
default 'utf-8')
> 
> In general, I think accepting None as unspecified can be good, so that
> callers can explicitly ask for the default without knowing what it is.
>  That can make it easier to write wrapper functions and so on.  In
> this case I don't have a strong opinion either way.

Aaron is right. In this case, because the default (when None is passed) is a 
constant ('utf8') is more clear and simpler to set the value in the function 
definition.

Goffredo

> Martin


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