Compound matches, such as nodegroups, can now be specified as lists. This
avoids splitting on whitespace which may be part of a key or value.
Right now this only works for nodegroups. Making the argument to "-C"
(compound list) a JSON argument is a future task.
The grains example would traceback if the grain was not defined, so I
have replaced this example with a better one. Also made a few changes
for consistency in formatting, and made a couple terms into links to the
relevant documentation.
This commit modifes a number of files which have command-line examples
so that the code-block directive is used. This provides more
visually-appealing syntax highlighting.
More commits like this will follow, this commit is part of an overall
documentation audit that I am performing.
