This commit ensures that files with exec permissions set continue to be
executable by the user extracting the archive.
This is not of use to any of Flux itself, but does help downstream
dependents making use of the controller to facilitate artifact
acquisitions for their (CI/CD) software suite.
Co-authored-by: Hidde Beydals <hidde@hhh.computer>
Signed-off-by: Rashed Kamal <krashed@vmware.com>
2736b748e6