Weblate got itself into a conflict and while resolving it it forced a
resynchronization of all translations, which in combination with a new
version of Weblate triggered a lot of rather pointless
multiline-to-singleline (and vice versa) changes. Let's squash all this
noise into a single commit to make both Weblate and us happy.
C.f. https://github.com/systemd/systemd/pull/43248.