[patch, fortran] Fix PR 34370, 34323 and 34405

[Jerry DeLisle]

Thomas Koenig wrote:
> Hello world,
> 
> here is a fix for a few problems in Fortran I/O,
> involving file-positioning after non-advancing I/O,
> formatted stream non-advancing I/O and error reporting
> for illegal operations.
> 
> Just trying to increase my standing in the year end list
> here :-)
> 
> Regression-tested on i686-pc-linux-gnu.
> 
> OK?
Thomas,

I also tested on x86-64 and tested NIST as well with no regressions.

OK to commit, thanks

Jerry