[SSSD] [sssd PR#213][synchronized] intg: Remove bashism from intgcheck-prepare

[lslebodn]

   URL: https://github.com/SSSD/sssd/pull/213
Author: lslebodn
 Title: #213: intg: Remove bashism from intgcheck-prepare
Action: synchronized

To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/213/head:pr213
git checkout pr213