When sorting paths it actually matters to use the right comparison function. Example: ``` a/x a-b/y a_/z ``` I think people would probably expect this: ``` a/x a-b/y a_a/z ``` but if you use strcmp() instead of path_compare() you'd instead get: ``` a-b/y a/x a_a/z ``` That's because `/` is between `-` and `a` in the ascii table. I think that's quite confusing, and we shouldn#t order that way hence. As discussed: https://github.com/systemd/systemd/pull/22662#discussion_r831174776
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