[patch,fortran] texi patch: fix CHMOD entry, list volatile and internal-file namelist support

[Brooks Moses]

Tobias Burnus wrote:
> The first small patch adds VOLATILE and the internal-file namelist
> support to the supported Fortran 2003 features.
> 
> The second corrects the CHMOD entry. I claimed that CHMOD as function
> does not work. It does, but subroutine and function don't work in the
> same program.
> 
> Question to the latter: How to handle intrinsics which are function and
> subroutine in one?
> One entry? Two entries? How distinguish argument and return value?
> My patch puts them in one entry, is this ok?
> 
> Tested by "make info" and "make pdf".

Oh, one other note -- could you please commit the update to the CHMOD 
entry to 4.2 as well as trunk, when you commit?  I'm trying to keep the 
documentation synchronized between the two trees as much as possible, so 
as to simplify backporting.

Thanks!
- Brooks