[docs] os.ftruncate documentation error

[Richard Ipsum]

On Sun, Feb 12, 2017, at 01:53 PM, Richard Ipsum wrote:
> Hi folks,
> 
> The documentation for os.ftruncate seems a little misleading,
> for both 2.7[1] and 3.6[2] the docs for os.ftruncate say,
> 
> "Truncate the file corresponding to file descriptor fd, so that it is at
> most length bytes in size."

I just spotted
https://docs.python.org/2.7/library/stdtypes.html?highlight=truncate#file.truncate
so I guess I'm suggesting that this kind of statement should be included
for the truncate
functions in the os module as well.

Thanks,
Richard Ipsum