- 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.
The code for the flag already existed it had just not been added to the argument parsing. Replace "print the operating system name." in -s help text with "print the kernel name." so the -o option can use the previous -s help text.
