Tags: patch My bad, the patch was incorrect, it should have said "replaced by the corresponding device major and minor numbers as two decimal numbers separated by a comma and at least one space.", as there's not always only once space between the major and minor. See also https://unix.stackexchange.com/questions/773014/where-do-i-find-documentation-for-the-output-of-ls-l where the issue was reported and where the variations of output formats between ls implementations is being mentioned. New patch attached.