bug#24999: 24.5; bad doc for invocation-directory

[Eli Zaretskii]

> Date: Wed, 23 Nov 2016 11:23:08 +0100
> From: Francesco Potortì <pot@gnu.org>
> 
> The elisp manual says:
> 
>  -- Variable: invocation-directory
>      This variable holds the directory from which the Emacs executable
>      was invoked, or perhaps `nil' if that directory cannot be
>      determined.
> 
> However, the doc string says:
> 
> invocation-directory is a variable defined in `C source code'.
> Its value is "/usr/bin/"
> 
> Documentation:
> The directory in which the Emacs executable was found, to run it.
> The value is nil if that directory's name is not known.
> 
> 
> The second description is the correct one, and the elisp manual is
> wrong.

Thanks, fixed on the release branch.