Add `or detectOs(Manjaro)` (#12587) [backport]
Add `or detectOs(Manjaro)` (#12587) [backport]

Using `pacman` command in Manjaro Linux

(cherry picked from commit 1ff3494dabd0fa5bf619fc8bd558381ead7c358d)

dom96/Nim,dom96/Nim,dom96/Nim,dom96/Nim,dom96/Nim,dom96/Nim,dom96/Nim