Title: #946: INI: sssctl config-check giving the wrong message
The sssctl config-check is giving the wrong error message when
there are only snippet files and no sssd.conf.
To address this problem sss_ini code had to be partially
rewritten to allow proper configuration testing.
To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/946/head:pr946
git checkout pr946