-V, --version -- deprecated?

The "--help" output for most of the binaries we install does not include
the "-V" option (just its alias, --version). Is this intentional?

(Note that we still document this option in the reference pages for some
commands, and initdb's help output does include "-V".)

Speaking of command-line options, "--version" and "--help" aren't
documented in a lot of command reference pages. Is there a good reason
why?

-Neil