Title: #5373: DEBUG: fixes program identifier as seen in syslog
Commit 225fe9950f2807d5fb226f6b3be1ff4cefd731f0 changed `debug_prg_name` to accomodate
needs of own SSSD logs, but this affected journal/syslog as well.
This patch amends situation:
- journal messages gets "umbrella" identifier "sssd"
- syslog uses default which is program name
Issue was reported at https://bugzilla.redhat.com/show_bug.cgi?id=1888409
To pull the PR as Git branch:
git remote add ghsssd https://github.com/SSSD/sssd
git fetch ghsssd pull/5373/head:pr5373
git checkout pr5373