docs: add `sym_hash()` example to mach-o module docs #2567

	name: Code health

	on: [ push, pull_request ]

	jobs:
	clippy:
	name: Clippy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@1.78.0
	with:
	components: clippy
	- run: cargo clippy --tests --no-deps -- --deny clippy::all

	rustfmt:
	name: Rustfmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@1.78.0
	with:
	components: rustfmt
	- run: cargo fmt --all --check

	udeps:
	name: Unused dependencies
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Install nightly toolchain
	uses: dtolnay/rust-toolchain@nightly

	- name: Run cargo-udeps
	uses: aig787/cargo-udeps-action@v1
	with:
	version: v0.1.45
	args: '--all-targets'

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