[PATCH v3 4/4] gdb/python doc: Move unwinder skeleton code

[Eli Zaretskii]

> Cc: ptsneves@gmail.com, gdb-patches@sourceware.org
> From: Pedro Alves <pedro@palves.net>
> Date: Fri, 30 Sep 2022 17:41:50 +0100
> 
> diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi
> index 2692211f388..4a7b047c3e0 100644
> --- a/gdb/doc/python.texi
> +++ b/gdb/doc/python.texi
> @@ -2861,21 +2861,21 @@ class MyUnwinder(Unwinder):
>  
>  @end smallexample
>  
> -@subheading Registering a Unwinder
> +@subheading Registering an Unwinder
>  
> -An object file, a program space, and the @value{GDBN} proper can have
> -unwinders registered with it.
> +Object files and program spaces can have unwinders registered with
> +them.  In addition, you can also register unwinders globally.
>  
> -The @code{gdb.unwinders} module provides the function to register a
> +The @code{gdb.unwinders} module provides the function to register an
>  unwinder:
>  
>  @defun gdb.unwinder.register_unwinder (locus, unwinder, replace=False)
> -@var{locus} is specifies an object file or a program space to which
> -@var{unwinder} is added.  Passing @code{None} or @code{gdb} adds
> -@var{unwinder} to the @value{GDBN}'s global unwinder list.  The newly
> -added @var{unwinder} will be called before any other unwinder from the
> +@var{locus} specifies which unwinder list the @var{unwinder} is
> +prepended to.  It can be either an object file, a program space, or
> +@code{None}, in which case the unwinder is registered globally.  The
> +newly added @var{unwinder} will be called before any other unwinder from the
>  same locus.  Two unwinders in the same locus cannot have the same
> -name.  An attempt to add a unwinder with already existing name raises
> +name.  An attempt to add an unwinder with an already existing name raises
>  an exception unless @var{replace} is @code{True}, in which case the
>  old unwinder is deleted.
>  @end defun

That's fine, but let's avoid passive tense where we can (and make the
sentence easier to grasp while at that).  So:

 @var{locus} specifies to which unwinder list to prepend the
 @var{unwinder}.