Doc: CG update Indenting with vim section

Doc: CG update Indenting with vim section

Suggestions for .vimrc did not produce correct indentation of C++
code, and also included personal and irrelevant settings such as
statusline and incsearch. I have replaced them with the settings
in the GNU GCC Wiki which do correctly indent. Also changed
suggested Scheme settings to use setlocal, and added a section of
settings for Texinfo files.

[Carl, 2016-08-06 13:26:43]

Thanks for doing this -- it helps me understand better how things work, and
gives an example of a more robust set of vim settings.

https://codereview.appspot.com/302340043/diff/1/Documentation/contributor/pro...
File Documentation/contributor/programming-work.itexi (left):

https://codereview.appspot.com/302340043/diff/1/Documentation/contributor/pro...
Documentation/contributor/programming-work.itexi:394: autocmd BufWritePre *
:%s/\s\+$//e
I think we should leave the removal of trailing whitespace in our recommended
.vimrc

This eliminates the problem of whitespace errors (which git will track and
complain about).

I agree that it doesn't belong in the indenting section, but I think it should
still be part of our recommendations for using vim.

[mark_opus11.net, 2016-08-11 13:44:53]

On 2016/08/06 13:26:43, Carl wrote:
> Thanks for doing this -- it helps me understand better how things work, and
> gives an example of a more robust set of vim settings.
> 
>
https://codereview.appspot.com/302340043/diff/1/Documentation/contributor/pro...
> File Documentation/contributor/programming-work.itexi (left):
> 
>
https://codereview.appspot.com/302340043/diff/1/Documentation/contributor/pro...
> Documentation/contributor/programming-work.itexi:394: autocmd BufWritePre *
> :%s/\s\+$//e
> I think we should leave the removal of trailing whitespace in our recommended
> .vimrc
> 
> This eliminates the problem of whitespace errors (which git will track and
> complain about).
> 
> I agree that it doesn't belong in the indenting section, but I think it should
> still be part of our recommendations for using vim.

Yes, good idea, I'll add the trailing whitespace fix back in. There's not 
really a better place for this stuff at the moment, unless we want to make
a dedicated VIM section.

[mark_opus11.net, 2016-08-11 14:05:24]

Re-add whitespace stripping