SC3012: POSIX.1-2024 adds test operators `<` and `>` (lexicographical comparison)

[e-kwsm]

https://pubs.opengroup.org/onlinepubs/9799919799/utilities/test.html

Austin Group Defect 375 is applied, adding the pathname1 -ef pathname2, pathname1 -nt pathname2, pathname1 -ot pathname2, s1 > s2, and s1 < s2 primaries.