[SSSD] [sssd PR#5773][opened] TEST: usermod -d needs absolute path

[sgoveas]

URL: https://github.com/SSSD/sssd/pull/5773
Author: sgoveas
 Title: #5773: TEST: usermod -d needs absolute path
Action: opened

PR body:
"""
usermod -d failed when it was given an empty string to update. This was
noticed in #5754. Updating test to check for modified home dir
"""

To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/5773/head:pr5773
git checkout pr5773