man: resolve word omissions

This is a recurring submission and includes corrections to:
word omissions and word class choice.
man: improvements to comma placement

This is a recurring submission and includes corrections to:
comma placement.
man: grammar and wording improvements

This is a recurring submission and includes corrections to:
- missing words, preposition choice.
- change of /lib to /usr/lib, because that is what most distros are
  using as the system-wide location for systemd/udev files.
Trim TODO