`w`: implement --short option #313

Job	Run time
cargo fmt --all -- --check	11s
cargo clippy -- -D warnings (ubuntu-latest)	22s
cargo check (ubuntu-latest)	19s
cargo clippy -- -D warnings (macOS-latest)	24s
Code Coverage (ubuntu-latest, unix)	2m 8s
cargo check (macOS-latest)	25s
Code Coverage (macos-latest, macos)	2m 18s
cargo check (windows-latest)	1m 34s
cargo clippy -- -D warnings (windows-latest)	1m 46s
Code Coverage (windows-latest, windows)	5m 6s
cargo test (ubuntu-latest)	30s
cargo test (macOS-latest)	36s
cargo test (windows-latest)	2m 17s
	17m 56s

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