Tested discovery of setuid binaries by changing `bin/feh` in graphics/feh to each of the following:
- `@(root,wheel,4644) bin/feh` — prints warning
- `@(,,4555) bin/feh` — prints warning
- `@(,,2555) bin/feh` — prints warning
- `@(root,,6444) bin/feh` — no warning
- `@(root,wheel,4644) bin/feh` — no warning
- `@(,,4544) bin/feh` — no warning
- `@(,,2544) bin/feh` — no warning
- `@(,,0555) bin/feh` — no warning
- `@(,,755) bin/feh` — no warning