Thanks for reporting this issue and providing a patch. Looks like this has also been reported and resolved in Debian, see the attached bug watch.
** Changed in: backuppc (Ubuntu) Status: New => Confirmed ** Bug watch added: Debian Bug tracker #1065055 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1065055 ** Also affects: backuppc (Debian) via https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1065055 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2085704 Title: "Old package separator used in string at" message in host logs after upgrade to 24.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/backuppc/+bug/2085704/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs