[docs] minor bugs in doc of python 3.1.2

[Georg Brandl]

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Am 10.05.2010 01:37, schrieb Heiner Marxen:
> Hello,
> 
> I think I have found a small bug in the python manual.
> URL: http://docs.python.org/py3k/reference/lexical_analysis.html
> chapter: 2.4.1. String and Bytes literals,
> Notes 4.: replace "exactly two hex digits" by "exactly four hex digits".
> 
> An additional note from a python newbie, reading the doc the first time:
> At the very end of the above URL, there is clearly stated, that the
> characters $ and ? are immediate errors (outside strings and comments).
> But what about the backtick character ` (\x60)?
> I do not find it mentioned anywhere, definitely not inside that URL.
> Shouldn't that char then be mentioned in the bottom section?

Hi Heiner,

thanks for the report; you're right on both counts, fixed now in subversion.
The backtick wasn't included in the erroneous characters list because it's
used in Python 2.x, and we forgot to include it here again.

regards,
Georg
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