[PATCH v3] doc: unify definition list usage across man pages

[David Bremner]

Jani Nikula <jani at nikula.org> writes:

> Make all parameter descriptions etc. use reStructuredText definition
> lists with uniform style and indentation. Remove redundant indentation
> from around the lists. Remove blank lines between term lines and
> definition blocks. Use four spaces for indentation.
>
> This is almost completely whitespace and paragraph reflow changes.

Pushed to master, with slightly painful conflict resolution when merging
release into master.

d