Add option to display paragraph delimiter

[bmc]

Per ohemming@gmail.com, it'd be nice to have an option that displays the paragraph delimiter, not just the paragraph contents.

Not sure whether it should be the delimiter that precedes a matched paragraph or the one that follows it.

[oliver-cfc]

You raise a good point. When I asked the question it was for the delimiter that followed the matched paragraph but I see merits for both.

Could both be included as options?

--include-delimiter-before
and
--include-delimiter-after

but with your naming convention

[bmc]

Added to version 3.1.0, but only for the delimiter FOLLOWING the paragraph. See the -P option.