Merge pull request #59 from cakebaker/slabtop_add_empty_line #211

Job	Run time
cargo check (ubuntu-latest)	20s
cargo fmt --all -- --check	10s
cargo clippy -- -D warnings (ubuntu-latest)	13s
Code Coverage (ubuntu-latest, unix)	2m 2s
cargo check (macOS-latest)	30s
cargo clippy -- -D warnings (macOS-latest)	30s
Code Coverage (macos-latest, macos)	2m 45s
cargo check (windows-latest)	1m 30s
cargo clippy -- -D warnings (windows-latest)	1m 18s
cargo test (ubuntu-latest)	31s
Code Coverage (windows-latest, windows)	5m 12s
cargo test (macOS-latest)	1m 38s
cargo test (windows-latest)	2m 1s
	18m 40s

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