meson format --check-diff cannot be used with --recursive

[embeddedpenguin]

This may just not be implemented yet. According to the docs this is intended, but I think --check-diff should be allowed to be used recursively.

Describe the bug
meson format --check-diff cannot be used with --recursive. Only --check-only and --inplace can be used with --recursive.

To Reproduce

meson format --check-diff --recursive

ERROR: --recursive argument requires either --inplace or --check-only option

Expected behavior
Since --check-diff should (I think) be used in place of --check-only so you get both the diffs and the exit code, it should be possible to use it with recursive.

system parameters

• Build Type: Native build
• OS: Gentoo Linux
• Python: 3.13.5
• Meson: 1.10.99 (25cd7ff)
• Ninja: 1.13.2