v0.3.1

This bugfix release resolves a number of issues:

• Avoid "too many open files" error regression introduced by v0.3.0 - #208
• Use the go.mod relative to each Go file when deriving flag defaults - #211
• Remove unintentional debug prints when directly formatting files

Binaries built on go version go1.18 linux/amd64 via a shell script.

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