[Perl/perl5] debb0f: hints: Fix >&4

[Elvin Aslanov via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: debb0f41760beb64e3bca1229fa70aa098f3702a
      
https://github.com/Perl/perl5/commit/debb0f41760beb64e3bca1229fa70aa098f3702a
  Author: Elvin Aslanov <rwp.prim...@gmail.com>
  Date:   2023-05-22 (Mon, 22 May 2023)

  Changed paths:
    M hints/aix.sh
    M hints/dec_osf.sh

  Log Message:
  -----------
  hints: Fix >&4

Fix the redirection in the two hints files