Changes:
- Add tests: All tests successful. Files=2, Tests=74. Result: PASS
- Remove USES=compiler:c++11-lang as it's no longer necessary for building on powerpc64.
- Pet portclippy, portfmt, and portlint
Upstream changes:
- Add --sort=none option to un-set sort modes specified earlier
- Improve error messages for Imlib2 ≥ 1.8
- Fix build with clang 16
- Fix tests when building with magic=1
Sponsored by: The FreeBSD Foundation