bug#35647: Documentation and implementation of (move-to-column <n> t) differ.

[Eli Zaretskii]

> Date: Thu, 9 May 2019 10:48:50 +0000
> From: Alan Mackenzie <acm@muc.de>
> 
> What the code in Fmove_to_column actually does is to delete the tab,
> insert enough spaces to get to column <n>, then calls Findent_to to
> finish the indentation to <n>.  Findent_to uses a tab when
> indent-tabs-mode is non-nil.
> 
> My feeling here is that the documentation rather than the code should be
> amended.  To amend the code would make it more difficult for
> uncomment-region to restore a tab character which has been earlier
> manipulated by comment-region.  (See also bug #35600.)

Would you mind preparing a documentation patch for this issue?

Thanks.