Add finish_style setting #1171

Job	Run time
audit	19s
lint	49s
msrv	16s
test (ubuntu-latest, stable, --no-default-features)	22s
test (macos-latest, stable, --all-features)	47s
cross (armv5te-unknown-linux-gnueabi)	40s
test (windows-latest, stable, --all-features)	1m 15s
test (ubuntu-latest, stable)	20s
test (ubuntu-latest, beta, --all-features)	26s
test (ubuntu-latest, stable, --all-features)	26s
test (ubuntu-latest, stable, --all-features, --target armv5te-unknown-linux-gnueabi, true)	24s
	6m 4s

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