Expose `chain_width` et al in 1.4#4782

Merged

calebcartwright merged 6 commits intorust-lang:rustfmt-1.4.38from

ctz:jbp-expose-chain-width-1.4

Apr 22, 2021

Commits on Apr 5, 2021

docs: update configuration info

calebcartwright
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ctz
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feat(config): expose all width heurstic options

calebcartwright
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ctz
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refactor: apply heuristic config changes in lib

calebcartwright
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ctz
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tests: augment heuristics tests

calebcartwright
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ctz
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refactor: remove panics on misconfigured widths

calebcartwright
authored and
ctz
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Add some basic tests for chain_width use
ctz
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