Recently we moved the `bip158` module but I missed one of the import statements in rustdoc - if only I could work out how to lint rustdocs.
Run the formmater on the newly moved `bip158` module. No changes other than those introduced by `cargo +nightly fmt`.
We are attempting to flatten the `util` module; move the `bip158` module to the crate root out of `util`. Currently `src/util/` is ignored by the formatter so this move causes the `bip32` module to be formatted.
Tobin C. Harding