[Perl/perl5] 8f432b: fix utime() to set $!/errno when called on a close...

[Tony Cook via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 8f432bc3ba869d057076b810871aa3c2071b7229
      
https://github.com/Perl/perl5/commit/8f432bc3ba869d057076b810871aa3c2071b7229
  Author: Tony Cook <t...@develop-help.com>
  Date:   2021-05-24 (Mon, 24 May 2021)

  Changed paths:
    M doio.c
    M t/io/fs.t

  Log Message:
  -----------
  fix utime() to set $!/errno when called on a closed handle

My 8334cae65 was intended to fix this, but the test was faulty, and
didn't correctly fail.

This started showing as a failure on cygwin, with the fixed test it
also fails on Linux, so fix doio.c as well.