### Bug Description snapcraft has a number of subcommands that come in pairs, of the form: $ snapcraft fubar $ snapcraft list-fubar which *mostly* are consistent, but not totally. The variations I see are: - plugins - extensions - tracks - revisions - keys - validation-sets [sort of] For the first four, if you run "snapcraft help list-fubar", the output, toward the end, refers the reader to the shorter form, but if you ask for help for the short form, you do *not* get referred to the longer form (a bit weird). Next, it *seems* that the commands "list-keys" and "keys" are equivalent, but the "help" output for the two are entirely different; examine the output of each of: $ snapcraft help list-keys $ snapcraft help keys to appreciate the strangeness. Finally, for consistency, if there is a "list-validation-sets" subcommand, then there should be a "validation-sets" subcommand. I can't think of a general rule for consistency for the above, but there should definitely be some consistency. ### To Reproduce Run the various "help" subcommands. ### Environment Ubuntu 22.04 amd64. ### snapcraft.yaml ```shell None. ``` ### Relevant log output ```shell None. ``` ### Additional context _No response_