Assorted spelling fixes.

[Frédéric Delanoy]

On Wed, Aug 3, 2011 at 11:36, Francois Gouget <fgouget at free.fr> wrote:
> diff --git a/programs/cmd/tests/test_builtins.cmd b/programs/cmd/tests/test_builtins.cmd
> index eb79fb2..be1eead 100644
> --- a/programs/cmd/tests/test_builtins.cmd
> +++ b/programs/cmd/tests/test_builtins.cmd
> @@ -530,7 +530,7 @@ mkdir foobar
>  rd foobar
>  echo %ErrorLevel%
>  if not exist foobar echo dir removed
> -rem Removing non-existent directory
> +rem Removing nonexistent directory
>  rmdir foobar
>  echo %ErrorLevel%
>  rem Removing single-level directories

There is apparently no hard rule on the usage of hypens between 'non'
and a subsequent adjective, but I've seen lots of "non-" (sometimes
even "non ") so I wouldn't call that a spelling error.
Furthermore, the "non-" form is more readable IMHO

Frédéric