[Freeipa-devel] [freeipa PR#3510][opened] [Backport][ipa-4-8] configure.ac: don't rely on bashisms

[tiran]

   URL: https://github.com/freeipa/freeipa/pull/3510
Author: tiran
 Title: #3510: [Backport][ipa-4-8] configure.ac: don't rely on bashisms
Action: opened

PR body:
"""
This PR was opened automatically because PR #3485 was pushed to master and backport to
ipa-4-8 is required.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3510/head:pr3510
git checkout pr3510