Rewrite CLI in Go #178
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Rewrite CLI in Go #178
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This rewrites the CLI in Go. It is almost 100% compatible, supporting the same CLI flags, usage, config file, etc. as the old Python version.
The Go version is hopefully easier to distribute: it's just one widely-compatible binary. The Python-based CLI was annoying to distribute because it had a dependency not only on system Python, but also on requests.
The only differences known are (1) slight differences in regex support between Go's
regexppackage and Python'sremodule, and (2)fpb --teeno longer inserts a newline at the end of teeing if the input didn't have one. This should be more correct.