Merge pull request #352 from linebender/license_fix #511

Job	Run time
cargo fmt	5s
cargo test nightly (macOS-latest)	23s
Docs (macOS-latest)	16s
cargo test nightly (windows-2019)	47s
cargo test msrv	1m 16s
cargo clippy+test (macOS-latest)	35s
Docs (windows-2019)	1m 9s
cargo test nightly (ubuntu-latest)	21s
cargo clippy+test (windows-2019)	2m 12s
Docs (ubuntu-latest)	13s
cargo clippy+test (ubuntu-latest)	46s
cargo clippy+test (wasm32) (macOS-latest)	35s
cargo clippy+test (wasm32) (windows-2019)	2m 3s
cargo clippy+test (wasm32) (ubuntu-latest)	51s
	11m 32s

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