Backport of "cerbero: Recognise Manjaro as an Arch derivative" into 1.22
Backport of !1242 (merged) "cerbero: Recognise Manjaro as an Arch derivative".
Commits:
- ce4adc4b cerbero: Recognise Manjaro as an Arch derivative
Backport of !1242 (merged) "cerbero: Recognise Manjaro as an Arch derivative".
Commits: