cp/mktemp: handle closed stdout errors for GNU compatibility

[ChrisDryden]

This is an in progress PR that I am publishing to give an example in the comments in the other PR's how we can use the signal handling changes in the init_data section to handle the stdout error handling the same way the GNU utilities handle it. Just need to fix the windows issues and add more integration testing.

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/tail/inotify-dir-recreate (fails in this run but passes in the 'main' branch)
Congrats! The gnu test tests/misc/close-stdout is no longer failing!

[github-actions]

GNU testsuite comparison:

GNU test failed: tests/date/date-ethiopia. tests/date/date-ethiopia is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/date/date-iran. tests/date/date-iran is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/date/date-thailand. tests/date/date-thailand is passing on 'main'. Maybe you have to rebase?
Congrats! The gnu test tests/misc/close-stdout is no longer failing!