[patch, doc, Fortran] Move UNSIGNED to extensions

[Thomas Koenig]

Hi Harald,


> Am 16.11.25 um 13:42 schrieb Thomas Koenig:

>> gcc/fortran/ChangeLog:
>>
>>      * gfortran.texi: Remove section "Experimental features for future
>>      Fortran revisions". Move documentation of UNSIGNED into Extensions.
>>      Mention flang compatibility.
> 
> This is OK.
> 
> Thanks for the patch!

Committed as r16-5364.  Thanks for the review!

Best regards

	Thomas