[freeipa PR#3883][opened] ipatests: refactor FileBackup helper

[wladich]

   URL: https://github.com/freeipa/freeipa/pull/3883
Author: wladich
 Title: #3883: ipatests: refactor FileBackup helper
Action: opened

PR body:
"""
This is a partial backport of #3868 

* `cp` now preserves all attributes of original file, there is no reason
  to select only some of them
* backup is now restored with `mv` instead of `cp` to avoid leaving junk

"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3883/head:pr3883
git checkout pr3883

[freeipa PR#3883][closed] [Backport][ipa-4-7] ipatests: refactor FileBackup helper

[wladich]

   URL: https://github.com/freeipa/freeipa/pull/3883
Author: wladich
 Title: #3883: [Backport][ipa-4-7] ipatests: refactor FileBackup helper
Action: closed

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3883/head:pr3883
git checkout pr3883