This update for sysuser-tools fixes the following issues:

- Update to version 3.2
- Always create a system group of the same name as the system user (bsc#1205161, bsc#1207778, bsc#1213240)
- Add "quilt setup" friendly hint to %sysusers_requires usage
- Use append so if a pre file already exists it isn't overridden
- Invoke bash for bash scripts (bsc#1195391) 
- Remove all systemd requires not supported on SLE15 (bsc#1214140)