Prefer aspects of representation clauses

[pjljvandelaar]

Dear Gprbuild developers,

Why not replace https://github.com/AdaCore/gprbuild/blob/1e13ed644c71509a0a6b8cd3102d88cedb59cf88/gpr/src/gpr-output.adb#L28-L29 with

   Buffer     : String (1 .. Buffer_Max + 1) := (others => '*') with
     Alignment => 4;

Greetings, Pierre

Problem detected and solved by Rejuvenation-Ada crate

[t-14]

Thank you for your suggestion, but this project is in long-term maintenance and we have no plans to update it project to the new syntax.