Fix -Wempty-body warnings in system-specific code

[Florian Weimer]

* Joseph Myers:

> diff --git a/hurd/hurdinit.c b/hurd/hurdinit.c
> index 773bb1c37f..2a224638ca 100644
> --- a/hurd/hurdinit.c
> +++ b/hurd/hurdinit.c
> @@ -100,10 +100,12 @@ _hurd_init (int flags, char **argv,
>  		   portarraysize * sizeof (mach_port_t));
>  
>    if (flags & EXEC_SECURE)
> -    /* XXX if secure exec, elide environment variables
> -       which the library uses and could be security holes.
> -       CORESERVER, COREFILE
> -       */ ;
> +    {
> +      /* XXX if secure exec, elide environment variables
> +	 which the library uses and could be security holes.
> +	 CORESERVER, COREFILE
> +      */
> +    }
>  
>    /* Call other things which want to do some initialization.  These are not
>       on the __libc_subinit hook because things there like to be able to

The change looks okay to me, although this to-do does look a bit scary.

> diff --git a/sysdeps/m68k/wcpcpy.c b/sysdeps/m68k/wcpcpy.c
> index a4bac08308..daeffc8f9b 100644
> --- a/sysdeps/m68k/wcpcpy.c
> +++ b/sysdeps/m68k/wcpcpy.c
> @@ -27,7 +27,8 @@ wchar_t *
>  __wcpcpy (wchar_t *dest, const wchar_t *src)
>  {
>    do
> -    ;
> +    {
> +    }
>    while ((*dest++ = *src++));
>  
>    return dest - 1;

Adhemerval deleted this file, so this is no longer needed.

Thanks,
Florian