Patch to fix "make proto fails"

[Mike Stump]

On Jul 10, 2006, at 12:41 AM, Andreas Krebbel wrote:
> in January I've posted a patch adding volatile to clean_text_p
> to fix the warning - but no review yet.
>
> http://gcc.gnu.org/ml/gcc-patches/2006-01/msg00050.html

I think it is sad that after 6 months it hasn't been reviewed.  Let's  
call the volatile one obvious and the other one wrong, as the  
existing style in protoize is:

static void
edit_fn_declaration (const def_dec_info *def_dec_p,
                      const char *volatile clean_text_p)