[wwwdata] Update Fortran section of gcc-4.6/changes.html

[Daniel Franke]

On Wednesday 15 December 2010 23:38:53 Steve Kargl wrote:
> I'll suggest a rewording of the form
> 
>     <li>Null pointers and unallocated allocatable variables can be used
>         as actual arguments to optional non-pointer, non-allocatable
>         dummy arguments to denote an absent argument.</li>

Hi all,

since I missed the commit and this is news to me - maybe one could add a word 
why this _is_ news and actually noteworthy?

IIRC, there was something that absent dummy arguments where marked by 0L, 
hence one could not pass a NULL pointer as it would be seen as "absent" not as 
"present with value 0". If that's the one, mentioning it might certainly help 
an unaware reader.

Just a thought.

	Daniel