[Perl/perl5] 45ce57: work around broken fclose on HPUX

[Yves Orton via perl5-changes]

  Branch: refs/heads/yves/open_stdio_hpux_test_issue
  Home:   https://github.com/Perl/perl5
  Commit: 45ce57bc78fe6bbdfd4bf9f645f313090774b197
      
https://github.com/Perl/perl5/commit/45ce57bc78fe6bbdfd4bf9f645f313090774b197
  Author: Yves Orton <demer...@gmail.com>
  Date:   2023-03-31 (Fri, 31 Mar 2023)

  Changed paths:
    M perlio.c

  Log Message:
  -----------
  work around broken fclose on HPUX