This makes clap wrap the help text according to the terminal width,
which improves readability for terminal widths < 120 chars,
because clap defaults to a width of 120 chars without this feature.
* mkfifo: general refactor, move to clap, add unimplemented flags
* chore: update Cargo.lock
* chore: delete unused variables, simplify multiple lines with crash
* test: add tests
* chore: revert the use of crash
* test: use even more invalid mod mode
- refactor internal version specifications to be ">=M.m.p" (where M.m.p is *already published*)
## [why]
Loosening internal version dependencies decreases the coupling between packages such
that packages can be published in a looser order. It allows the packages to be version
updated and published in tandem (ie, by using `cargo workspace ...`). Once published,
the internal versions can then be updated (again, to an *already published* package
version), as needed.
