bug#29328: 24.5; doc string of `transpose-subr`

[Eli Zaretskii]

> Date: Fri, 17 Nov 2017 07:02:22 -0800 (PST)
> From: Drew Adams <drew.adams@oracle.com>
> Cc: 29328@debbugs.gnu.org
> 
> > > The doc string should describe each parameter.  Parameter SPECIAL is
> > > not described, and its name is not specific or enlightening.
> > 
> > I don't see how it can be meaningfully documented.
> 
> That's tantamount to saying that the parameter has no meaning,
> no behavior.

No, it isn't.  It's tantamount to saying what I have just said.

> If it does something then that something should
> be describable, in some way, at least.  The place to start is
> with the intention - why do we have such a parameter?  What
> does it let you do?  Why/when would code ever make use of it?

Thanks for the lecture.  Rest assured, I asked myself all of those
questions, and then some.  This is an internal subroutine, so it
doesn't have to document everything.

Please accept my judgment on this.