Add a limit argument to all potentially paginated results, equal to
whatever the composer backend is the total number of results. This still
has the potential to provide truncated data if the number of results
increases between the two HTTP requests.
Resolves: #404
This is the same as the output at the top level, just trimmed down to
only the options for a single subcommand. It's trigged by providing
"help" or "--help" as a subcommand option.
(cherry picked from commit 954f330ace)
