Fix perl scripts to work with complete message ids
Before, they didn't differentiate between IDs like 'm1' and 'M1', which led to errors.
Also changed the tests s.t. they fail with the old code.
Bitte beachtet dass wir Änderungen am SSH Zugriff auf Repositories vornehmen und ihr aktiv werden müsst falls ihr den SSH Zugriff nutzt. Weitere Informationen: https://cs.uni-paderborn.de/rechnerbetrieb-irb/dienste/git/#c883511
Please be advised that we will make changes to repository access via SSH and you will need to take action if you are using the ssh access. More information: https://cs.uni-paderborn.de/en/irb/services/git/#c883511
Before, they didn't differentiate between IDs like 'm1' and 'M1', which led to errors.
Also changed the tests s.t. they fail with the old code.