[docs] Patch to enhance literal block language declaration (issue 26462)

[vadmium+py at gmail.com]

https://bugs.python.org/review/26462/diff/16666/Doc/whatsnew/3.2.rst
File Doc/whatsnew/3.2.rst (right):

https://bugs.python.org/review/26462/diff/16666/Doc/whatsnew/3.2.rst#newcode2048
Doc/whatsnew/3.2.rst:2048: .. code-block:: none
On 2016/07/26 09:45:45, sizeof wrote:
> On 2016/07/25 07:10:49, vadmium wrote:
> > Pygments lexer name 'doscon' is not known
> 
> doscon looks known to some pygments version, at least mine did not
give the
> warning about unknown lexer:
> 
>
http://pygments.org/docs/lexers/#pygments.lexers.shell.MSDOSSessionLexer

Yeah I think it is safe to ignore this. After I posted that I discovered
that you need Pygments 2.1 and I only have 2.0.

https://bugs.python.org/review/26462/